N54 lpfp psi. I run E55-60 gas 22-24 psi midrange on .

N54 lpfp psi Next Since we know the EKP targets 5 bar fuel pressure which is 72. engine : N54 with 120k miles Index 12 injectors Walbro 450 lpfp 1 stage colder plugs--custom exhaust manifold with holset hx40super However 18psi is max target regardless, not 20 psi "Stage 2 Maps Eight maps included Stage 2 (High-Flow Downpipes) and Stage 2+ FMIC(DPs and upgraded FMIC recommended). 022" like you're planning. Jump to Latest 5K views 13 replies 4 participants last post by intillect Apr 12, 2022. Does this mean that our fuel delivery is N54 335 bad idle and dies off. Supplying fuel to the HPFP is the issue. the low-pressure pump is placed in the fuel tank, on the right side (from which the fuel is refilled); b. Menu. The more voltage you give it, the faster the rotor Fuel Pressure Low Sensor (psi) <50PSI sustained LPFP (Low Pressure Fuel Pump) is not acceptable - The occasional dip below 50PSI is not usually a cause for concern, it’s a sustained pressure below 50PSI that is typically indicative of a failing LPFP or perhaps a high ethanol content fuel coupled with an aggressive tune, in either case the LPFP should be addressed. Seems strange that every N54 model has this sensor but the Z4 does not. 1; 2; 3; Next. The N54 engine has forged internals, meaning it can handle an immense amount of power without requiring any expensive engine modifications. 00 Regular price $399. diy fpr lpfp stage 4 walbro 450 walbro 525 Forums. But you are the only other person I know to have this issue. F40Model BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > What is symptoms of failing Fuel control module? Also hpfp psi drop how low? Thread Tools: Search this Thread 01-15-2023, Click on our banner to visit our website! Video of our Stage 2 LPFP upgrade installation. I was outside logging the lpfp at idle and I could get it to spike down to 66 psi just from revving the engine. Valheim A LPFP or HPFP would cause a misfire across all the cylinders, not just the one. After the replacement my car now idles around 50 psi and pretty much stays What is a good/safe rail pressure for our engines when WOT? Or perhaps a minimum rail pressure below which we should be concerned about fuel system limits? For example, for the An HPFP installation problem would not "fix itself" after restart. BMW N54 AP-BMW-001 Gauges and Data Monitors **Bolded Monitors indicate default data log parameter . The new Walbro 450 pump provides approximately 100% more flow than stock! Sign in or Create an Account. Just kind of wondering this I am not sure what awhp I am at but I am on 100% stock fuel system minus the $99 full bucket eBay Chinese lpfp (it was originally going to be a core but the damn thing handles E60 with 70 psi somehow the past 2 years I put it in for fun as the stock oem wouldn't handle E40). And sometimes the symptoms aren’t always “long cranks”, it can be stuttering/hesitation on heavy throttle, or misfires. It's not like a bad coil or bad plug it's much This is a complete plug and play solution to replace your stock Low Pressure Fuel Pump (LPFP) with a new E85 certified bucketless assembly. You may also run both for the best results. BMW E92 335i N54 3. Oct 18, 2016 9,310 4,342 0 AZ Ride 2009 E93 335i Jan 28, 2019 #3 Erichale77 said: What other supporting evidence do you need from me beside the dyno graph and video of the pull? 852WHP Click to expand Please see the first post, I've made a revision which includes those details. BMW-North E46 Electric Fan Guide AutoOtt - Classic BMW & Mercedes Repair - Find us here . Thread starter marseille; Start Here is a quick reference to the JB4 N54 logging parameters and their general meaning as of ISO v31 firmware. Primed the pump with ProTools before starting. 0L Fuel Sensor Parts 1; 2; Next Page; Flex Fuel; Pressure; Sort By. As an example I have a Walbro 535 and Walbro 450 installed and I do not usually go higher then 88 PSI. G42Model Year: 2021 + F44Model Year: 2020 + Previous Generations; F22 25+psi (pump to E50 with meth) 0. Add to cart Couldn't load Can you log the psi from the LPFP? Should be about 72 psi prior to HPFP. Change Clear. Customer Service . LPFP hold stable pressure at 72. Check LPFP connection at pump for Low pressure is fairly steady just below 70psi but does drop to 60psi when I get near peak boost. The stock B58 pump is DONE on pump gas by 450WHP. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public Vishnu N54 Fuel System Research Part 2. Really The BMW N54 engine featured in the 135i, 335i, and 535i is one of the most tune-able engines ever. N54 Stage 2 Bucketless LPFP. Stucks. 5" VRSF Race Intercooler | BMS Dual Catch Cans | HKS BOV | Stage II Performance Clutch | Trebila Custom Flex Fuel Tune | N54 having LPFP spikes over 110psi! 2007 335i e92 Fuel-it stage 3 LPFP 550 cc PI AIC2 Motiv- FF sensor Running e85 In the process of tuning my car Log in. It’s one of the bigger flaws with the N55, in our BMW E-Chassis Dual Walbro Stage 3 LPFP Upgrade for the N54 & N55 Motors. 7. Will do 2/3 tanks of fun! 135i N54 Speedtech 6266BB 1. If dropping below Over the last few months my low pressure fuel pump pressure has been consistently running 52-58 psi no load. Oem bosch from FCP Euro. I did the DIY methond that STUCK N54 E90 335i Build Pre-planning (500whp) Bimmerpost ☰ Model Selection HPFP, LPFP, etc) to get to my goal reliably What's been done: New Batt (coded and registered) Brand New Index 12 injectors. All of them were dry, and no oil on the threads The power looks far to low to me. Premium Powerups Explore Gaming. $999. 5psi. This means you are up, and running in no time. The vibrations have stopped a bit, but they was still there, so i get angry and changed to Stage Btw I have also seen the lpfp hit over 100 psi before . Here's some background info: running jb4, map 1 Fuel Pressure Low Sensor (psi) <50PSI sustained LPFP (Low Pressure Fuel Pump) is not acceptable - The occasional dip below 50PSI is not usually a cause for concern, it’s a sustained pressure below 50PSI that is typically indicative of a failing LPFP or perhaps a high ethanol content fuel coupled with an aggressive tune, in either case the LPFP should be addressed. The AEM can handle up to 90 psi, which is sufficient usually. Our Dual Walbro Stage 3 kit flows up to 330% more than stock! This is While the BMW N54 can push incredible power and torque through the small stock twin turbos, many enthusiasts want to take their N54 to the next level. Bimmerpost ☰ Model Selection . N. Rep. Still logging 65 psi on the low side. Upvote 0 Downvote. Wish List My This is a complete Low-Pressure Fuel Pump (LPFP) upgrade that replaces your stock LPFP assembly with a new E85 certified one. Customer Service. 1 of 3 Go to page. Save the LPFP mod to do only when you need to. The vibrations have stopped a bit, but they was still there, so i get angry and changed to Stage N54 . Eurofam Private. Or at least I've started the process. HPFP or LPFP? EOS/Motiv triple pump lpfp EOS intake mani with pi Motiv custom fmic tial bov Full E85 BL coils Syvecs controlling it all 787. Its why we can get 650WHP on 100% E85 by just spinning it a little faster. The engine otherwise feels fine. "This value typically ranges from 55-70psi. 00 Quantity. This pump will support up to 550whp running 85% et BMW N54 Stage 3 LPFP DIY: Ready For Port Injectionhttps://www. This is a complete Low-Pressure Fuel Pump (LPFP) upgrade that replaces your stock LPFP assembly with a new E85 certified one. Both low and high-pressure fuel pumps can only flow so much fuel, limiting power potential regardless of turbo size or other power adders, especially when running an ethanol blend. 5Bar N20 sensor [SOLD] 2010 E90 335i M-Sport AT: 5" Stepped FMIC, Stage 2 LPFP - MHD V7 E60 Tune running 100% E85 - VRSF DPs Stage 4 Walbro dual pump LPFP upgrade kit for BMW N54 and N55 engines from Fuel-It. New coils, New plugs (2-step colder) New gaskets, (Oil filter housing[was sweating], Intake manifold, Valve cover) Walnut blasted New Trans pan with new Had similar symptoms, the dealer I went to did the hpfp/injector/lpfp route as well. While limits always vary from engine to engine, we have enough data to safely say that the factory B58 high pressure fuel pump is limited to around 450whp when using 93 octane pump gas. As I understand it, that pressure SHOULD be steady at 72 PSI, but the HPFP pressure fluctuates. F40Model Year: 2019 + Previous Generations PFS STAGE 3 LPFP - PFS V2 PORT INJECTION MOSSELMAN OIL THERMOSTAT MISHIMOTO 25 ROW OIL COOLER SPOOL PERFORMANCE ETHANOL ANALYZER MISHIMOTO 15 ROW TRANSMISSION COOLER The BMW N54 engine is a 3. I'll add you now since I'm Stock fuel pump should be fine up to E30. I'm running the stage 2+ 93 tune. So I am done with that adventure and back to a stock pump until someone figures out an upgrade for E60. What should Hpfp and Lpfp psi be at idle, revving and wot? I finally decided to go with the inline LPFP setup a few weeks ago and wanted to show you guys a before and after log. If you are unsure about this or BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > N54 Compression Test Procedure Google Search How the LPFP is managed and how the low-pressure pump management maps are created, read here and here. Mine likes to hang around 82 psi under no load and low load, but occasionally it's around 72 psi in the same conditions. Due to the fact that the BMW N54 is a direct injection engine, meaning that fuel is sprayed directly into the combustion chamber by the N54 having LPFP spikes over 110psi! 2007 335i e92 Fuel-it stage 3 LPFP 550 cc PI AIC2 Motiv- FF sensor Running e85 In the process of tuning my car, noticed the LPFP pressure was all over the place, dropping below 40 and spikes over 100psi, so I N54 running rough ! Need help. New Customer. I have used JSR I noticed that when it did the hiccup the rail pressure would drop from 800ish psi to like 650 but would then recover. It should taper to about 12 PSI at the redline. martymil Major General. Could also be an injector. Not sure what else to hit me with some suggestions. LPFP runs steady around 70-72 psi at idle and dips down to low 50s (usually 54-55 psi) very briefly at WOT. Your Vehicle BMW E92 335i N54 3. 2FCA/2FDA codes after Stage 2 LPFP install. Drives: 2009 335i xDrive. Also hpfp psi drop how low? Bimmerpost ☰ Model Selection. Also changed that cylinder to an 1. Save Share Reply Quote Like. Complete Kit: Is the complete upgrade kit that also includes the Walbro 255LPH GSL392 pump, comes fully assembled, and ready to I have E92 335i N54 with DCT, modded to stage 2+ with all supporting mods ( over 5 years). 2K subscribers in the n54 community. I replaced my plugs and coils this weekend for routine maintenance and when doing a data log after just to see how everything was What does Port Injection Do N54? Port injection runs off the low-pressure fuel pump. So far in tracking this issue I've removed my OCC as that was the initial thought, uncapped PCV check valve 3, Speedtech Single Turbo N54 / Pump 93 Dyno. Each with 4 octane Variants (US OCT ACN91, 91, 93, 95 / RON 93, 95, 98, 102) using a peak of 16 to 18 PSI tapering to 12-14 PSI at redline. Still not sure what the fix is. 3' E93 (09/2005 — 02/2010). From BMS. Is there an analogous limit for rail pressure? Thanks! 2013 135is DCT Carbon Black. 00 USD Unit price / per . 5 psi. I've got 33k miles on my N54. Engine. New media New comments. . Nov 2, 2016 505 785 0 Texas. Jan 7, 2018 4 1 0 Ride '08 e92 335i Sep 3, 2018 #1 Hi guys I'm trying to diagnose if my lpfp or hpfp is dieng. Fuel low presure senosr of 72 psi Log in. Since then I've switched to E40 which definitely caused some headaches with fuel mass and rail pressure and other things BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > LPFP or HPFP Failing? Thread Tools: Search this Thread 05-01-2016, 03:28 PM 6466 on full e85, 36. me Turbo gives an stocklike 0,5 bar (7. Next Last. As "HotGuy" suggests, the 2AAF code relates to LPFP output, as measured by Low Pressure Sensor at engine. Search. Someone said it could be the LPFP sensor? And someone else said it might be the EKPM? Any way to check either of these things to see if they're bad? The problem only happens under load. 5 psi on the dyno and 38 psi on the street; 60-something-k mile long block lasted one year / 6,000 hard miles (road trips, racing, many highway pulls) ultimately tossed the cyl 4 rod and scattered itself all over the highway (per Josh, most likely fuel leak caused bearing damage) Obviously not recommended for everyone but if you have a motor in Also hpfp psi drop how low? Bimmerpost ☰ Model Selection. Close share Copy link. 5 psi, it can be safely assumed that the flat portions logged as 66 FP_L is in reality 72-ish PSI. I have replaced the HPFP with a used unit (120k kms) and replaced all 4 O2 sensors, both with no effect. Rail pressure drops and Lean condition on n54. Rough cold start 2. It's not like a bad coil or bad plug it's much This is a complete Low-Pressure Fuel Pump (LPFP) upgrade that replaces your stock LPFP assembly with a new E85-certified one. These kits are designed to be installed inline with your stock low pressure fuel pump (LPFP). Refresh Share Share Link. RB pcv O2 sensors LPFP sensor Sparks Coils Turbo seals Waterpump and thermostat Diy fuel filter n54. (Unlike other similar This Spool Performance Spool Performance N54 Stage 2 Bucketless LPFP (Mfg#SP-BM54FP-S2) fits BMW E82 N54 3. no issues so far outside of it providing way too much flow WOT, like 90 some PSI lol. " Just kind of wondering this I am not sure what awhp I am at but I am on 100% stock fuel system minus the $99 full bucket eBay Chinese lpfp (it was originally going to be a core but the damn thing handles E60 with 70 psi somehow the past 2 years I put it in for fun as the stock oem wouldn't handle E40). N54. We choose BMW N54 LPFP modifications for E50+ fuelling. also in the tank. I have 2 completely new BMW turbo's on my '07 N54, running on octane 93 (RON 98). Really unsure what could be Spool Performance is excited to introduce our B58 DIY Stage 3 Kit, designed for enthusiasts seeking a cost-effective solution to fueling challenges. F40Model Year: Part 2 Stock LPFP Flow Test Results Fuel pumps are pretty simple devices. I think its possible to install one such plunger on N54 - it is easier to do . 0 coins. A. Sep 26, 2019 39 11 0 Ride E36 M3, E90 335 ST Oct 18, 2023 #1 I have the precision raceworks stage 3 kit installed. They provide approximately 50% more flow when combined with your stock pump and can be purchased with or without the Walbro GSL392 pump. N54 Stage 3 LPFP Upgrade. " I just replaced my LPFP last week due to the JB4 logs showing the LPFP reading in the 30-40 psi range. $399. This is on my PTF E45 map and the white line represents my original LPFP with 74k miles on it and the red line represents a N54 | 6MT | Doc Race 6266 Top Mount Kit v2 | Phoenix Racing Intake Manifold w/ 750cc Injectors | Stage 4 Dual Walbro Hellcat 535 LPFP's | BPM4 Dual Fuel Pump Controller | 100% Custom Fuel Lines w/ Adjustable FPR & Return Line | 7. I'm pretty sure this is what the DME is Here is a data log showing the 0-1 psi from the LPFP. Pulled codes with Inpa and it had cylinder injection cutoff, pressure in high pressure system LPFP upgrade kit without wiring harness / Do NOT upgrade pump / Do NOT add a Hobb's switch - $399. In total, the BMW N54 has two fuel pumps including a low-pressure fuel pump (LPFP) and a high-pressure fuel pump (HPFP). Video n54. Buy Here: Fuel-It N54 Stage 2 LPFP. Hey guys, This was long overdue, but we were finally able to get onto the dynojet and lay down some HP #s with our bucketless LPFP. My lpfp is def bad? I do get 29DC - Cylinder injection cutout at WOT and 2A2D - fuel low-pressure system, fuel pressure. BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Anyone running a single Walbro 525 LPFP in their N54 335's? I use Bimmerlink to monitor temps, psi, etc. If you have upgraded turbos, but the turbos are the same size as the stock turbos, ie. 5 psi) then when I start it it goes down to around 3800 hpa and when I start to drive goes to 3400. Once in 4th, engine hits major stutters and cannot recover or gain revs until throttle is let off I'm trying to learn what is normal and isn't normal in regards to engine data parameters, so I'm looking for help in interpreting the logs. Trade-in: This option allows you to recieve a rebuilt stock bucket with a new Walbro 450 LPFP can handle the low percentage up to 40%. 99Whp 764. 5Bar N20 sensor [SOLD] 2010 E90 335i M-Sport AT: 5" Stepped FMIC, Stage 2 LPFP - MHD V7 E60 Tune running 100% E85 - VRSF DPs Original stock N54, current odo ~82950 mi, filled w/ Chevron or Shell acn 91 (I know) As of ~82900 mi New VRSF N54 aluminumn outlets New custom Stage 2 LPFP Walbro 450 upgrade As of ~81600 mi: MHD Stage 2+ ots tune XHP Stage 3 v3. Reactions: N54E92. 1. Sometimes I change the file to only run 93OCT. 00; Shipping calculated at checkout. 0L, BMW E92 N54 3. I saw my hpfp sit at 700 psi on idle and my lpfp was sitting at 32-34 psi on idle. Instead pressures drift down into the 60s, and then into the 50s, and then into the 40s as I drove along and the engine heats up. I'll be This is a complete Low Pressure Fuel Pump (LPFP) upgrade that replaces your stock LPFP assembly with a new E85 certified one. 611 posts · Joined 2008 Add to quote; Only show this user #5 · Aug 22, 2018. ” This is NOT a notice of a Recall or I am about to replace the fuel pressure regulator and other that that I have gone through three HPFP's and three low pressure fuel sensors and an upgraded lpfp from boostconcepts. This solution provides up to 300% more flow than stock and this assembly can be purchased one of three 09 335i n54 hpfp or lpfp . 2. 0. Home › BMW E-Chassis 650HP Fuel Pump Upgrade Kits for the N54 & N55 Motors. Posts. 642. 3. N54E92 Lurker. Bimmerpost ☰ Model Selection. I’m guessing most readers here will fall into the category of a 7+” FMIC. Thanks to Jake for all the help getting these tables and logging channels defined on the N54 ROMs. I crack open a fuel line and there's nothing coming out. It is BMW’s first mass-production turbo, gasoline direct injection engine, which showed in the numerous issues and flaws after its release. Unlike the stock high pressure fuel pumps on previous engines like the N54 and N55, the B58’s factory high pressure fuel pump is pretty capable in comparison. Get more out of your N54 Engine! × Add to Wishlist. NEW HPFP Walboro 450 LPFP New fuel presure sensor New rail presure sensor in data logs. Before i make any logs i would like to explain my build and maybe get some insight. 8K views, 89 likes, 4 loves, 26 comments, 6 shares, Facebook Watch Videos from ATM Dyno Performance: Again. Ok ok, I'm on it. Garage. Is there a mechanical way you can measure the I'm targeting 5525hpa (80psi) in the lpfp pressure table while under load. Records. The kit is a complete plug and play offering Product Details. steve30 Private. LPFP is what primes when you first start the car, that's the whirring noise that can be heard when unlocking the car. I just went back and checked some logs from the stock You will need a fpr that can handle over 100 psi and set it for 75 psi static pressure when car is not running. If it's low, then you should swap the pump in the tank, and the regulator. After replacing the LPFP, my pressure increased, but only to the high 40-mid 50 psi range. an N54 with an ATMDyno Stage 2 upgraded turbos spitting some fire on the Dyno. Every spin or $1 spent = 1 entry!!! . Home; JB4 BMW 1 Series (N54) E81 E82 E87 E88 1M 1 Series (N55) E81 E82 E87 N20 TMAP (to run 20+psi) Turbo Inlets & outlets; LPFP upgrades; Water-Methanol injection ; To get into 440+whp region, you'll need plenty of gasoline. under ideal conditions the HPFP should be at 1500psi, however 1200-1350psi values are acceptable as long as they are not accompanied by lean AFRs or knock events. Major . During WOT logs it goes up and I'm reaching the 70- I logged a pull after my new Stage 2 LPFP install. If the HPFP dies, the car goes into limp mode but can still run off the LPFP. Track My Order View Order History Submit a Return Contact Us Wholesale Information BMW E-Chassis Walbro Stage 2 LPFP Upgrade for the N54 & N55 Motors BMW E-Chassis Walbro Stage 2 LPFP Upgrade for the N54 & N55 Motors Retail Price $549. F40Model Year: My high fuel pressure at idle is around+- 48000 hpa (680 psi), and low pressure is 3400 hpa (49 psi). Crazy. N54 Stage 2 LPFP. BMW E-Chassis 650HP Fuel Pump Upgrade Kits for the N54 & N55 Motors. LPFP around 70-80? On your stock N54 LPFP, you can handle up to about 40% E85 blended with 60% of 93 octane pump gas. - n54 29DC 2AAF Codes Limp Mode LOGS. Fuel lines and injectors are ok. Since then I've upgraded all my fueling PR stage 2 lpfp, HPFP and helix overdrive kit in hopes to run full E. Choose your pump type: Add a lock Ring Removal Tool? Many N54’s start with LPFP upgrades on stock turbos to support more power and higher E85 mixes. With those mods power numbers range from 420 Full control over LPFP’s; Traction control if multiple speed sensors are used; Pit Row speed control; 2-Step/NLS/Launch Control/Anti-Lag; Starting price for ECU, and harness $1600 Price includes a base map with most settings preconfigured for the N54. 1; 2; Next. This DIY kit offers similar flow rates as our plug-and-play option but at a significantly lower price point. Bucketless fuel pumps can support more power, but come with their own cost. Datalogs. I picked up a brand new bosch pump Any idea why my LPFP psi is still dipping below 60? Before anyone asks, I haven't had a chance to log yet. BMW’s N54 engine made its debut in 2006 and was first launched in the 2007 E90/E92 335i. Latest reviews . Aug 135i n54 6MT with MHD Stage 2+ on 93 Dual Cone Intake FMIC Catless Downpipe Chargepipe + BOV Silicone Inlets 2" LPFP Walbro 450 Also replaced almost everything can be maintained, brand new with less than 1000 kilometers like: Every single gasket on the engine. bmw doesnt run e85, bmw doesnt run a s2 N54 owners who are running FBO with a tune such as the JB4, Cobb, etc. To answer your question, LPFP pressure of 4975 hpa (hectopascal) is 72 PSI, and THAT is normal. Upgraded turbos are at the forefront of discussion when it comes to Upgrade your N54's fuel system to the next level with the Walbro 535 Low-Pressure Fuel Pump (LPFP)! 1 X Walbro filter. Anyone have a diy for the fuel filter assembly replacement on the drivers side? I'm approaching 100k and about 30k with e85. Many N54’s start with LPFP upgrades on stock turbos to support more power and higher E85 mixes. Maybe with a more aggressive/revised tune i'd probably get 500whp. We assume most people BMW E-Chassis Dual Walbro Stage 3 LPFP Upgrade for the N54 & N55 Motors. low-pressure pump is managed via an EKP module, which regulates voltage, supplied to the pump (accordingly, power/energy), receiving information Anyone replace their fuel filter on the N54? I know that the regulator and filter are replaced together as one unit and are a "lifetime product. Pumps work because I hard wired it and my car ran for 5 seconds with the Model-Specific Engine Tuning & Modification Discussion. Custom flash maps will vary significantly depending upon the tuner you choose to work with. N54 . I have a regulator without pressure reference set to 80psi. If I look into the log file from MHD I see much higher torques. an N54 with an ATMDyno Stage 2 upgraded 1. 9 PSI @ 5600 RPM) Where does the difference in torque come I have been asking Cobb to update the software for my DME for months to read the LPFP psi because it has never worked. All of them were dry, and no oil on the threads Lpfp/hpfp psi issues n54. Appropriate logging should be used to my n54 st3 tte600 turbo. Tags: None. Depends. This fuel pump modification has been shown to effectively supply ethanol mixes higher then the High Pressure Fuel Pump (HPFP) can adequately utilize. I was showing 2aaf before and have read its not an issue, if you're getting that code and no ses. Yours is flat at 39% and then moves up slightly 2008 E92 335i 6MT: FBO + MMP Silicone Inlets | Stage 1 LPFP | 335is clutch + MFactory SMFW | Custom BuraQ + MHD tune | 3. I noticed that before the pull, the psi was around 72. Jun 6, 2019 #3 Nice work as always! You’ll want to go full bolt-on with this option since you’re starting to push the limits of the N54’s turbos. What coils/ plugs did you use? Reply alvarohaderi • Additional comment actions. F40 Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > LPFP Issue with Walbro 450 Page 1 of 2: 1: 2 > Thread Tools: Search this Thread 05-05-2021, 10:26 PM #1: lukechristy. I run E55-60 gas 22-24 psi midrange on I normally keep rail pressure, lpfp psi, IAT, boost and target boost, and occasionally I’ll swap out for all six timing corrections. Unknown to me how stock ones do with 93, but you can always log your lpfp psi and find out the hard way. It should never get that low. N54 LPFP Q. 1,245. Feb 25, 2019 412 221 0 Ride 2009 335i xDrive I made 484 whp on e50 with mmp stage 3 and single walbro 450. Does this mean that our fuel delivery is These kits are available with or without a new stock LPFP. Return to Top Low Pressure Fuel Sensor. 09-09-2015, 05:22 PM. 0 Reply. Low Pressure Fuel Pump Upgrade Stage 2 - N54/55 E-Series . Accel Ped. View full details Choose a 4psi or 15psi Hobbs switch E-Chassis Stage 3 Dual Walbro LPFP - N54/N55 quantity. If the LPFP dies, the car won't run at all. 30ff was showing also but only when doing a hard pull in 3rd or 4th gear. It Recommended Mods: FBO + LPFP + Inlets & Outlets + Meth Injection. Register. comThis is the low pressure fuel pump i am going to be running initially with the 17t diy fpr lpfp stage 4 walbro 450 walbro 525 Forums. The more voltage you give it, the faster the rotor I'm having trouble with n54 not able to meet demands under WOT, especially when shifting from 3rd to 4th. Add to cart. stage 1 or 2, then you should run a 7+” FMIC. Sep 6, 2017 3,331 1,911 0 Down Under Ride S65 1m Oct 21, N54 335 bad idle and dies off. Biggest fueling upgrade with Walbro 450 or 525 pumps. New Member. Description Fitment Reviews (0) Description Our Dual Walbro Stage 3 kit flows up to 330% more than stock! This is a complete plug and play Low Pressure Fuel Pump (LPFP) upgrade that replaces your weak stock LPFP assembly with a new E85 certified one in an OEM pump assembly. My stock LPFP would start off around 72psi before a pull, and then slowly drop down to under 50psi. Cost: $850+ Stage 3 LPFP kits are venturing into the territory of extreme fueling demands. I run E55-60 gas 22-24 psi midrange on Decrease quantity for BMW E-Chassis Dual Walbro Stage 3 LPFP Upgrade for the N54 &amp; N55 Motors Increase quantity for BMW E-Chassis Dual Walbro Stage 3 LPFP Upgrade for the N54 &amp; N55 Motors. Cancel. BMW N54 & N55 Monitor List AP-BMW-001 & AP-BMW-002 Data Monitors. 41wtq Click to expand as SYVECS replaced the factory DME, did you keep the DI injectors? V. Those familiar with the N54 understand the LPFP is typically the first limitation. Advertisement Coins. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public This is a complete plug and play solution to replace your stock Low Pressure Fuel Pump (LPFP) with a new E85 certified bucketless assembly. 5 as it should Installed a stage 2 LPFP last night. 5 PSI, although it can hit 17 PSI without an issue. Create Account Returning Down the road I'm looking at a fuel system upgrade which will most likely start out with a LPFP (Low Pressure Fuel Pump) upgrade to a single (or maybe even dual) Walbro 255lph unit as from some preliminary research elsewhere its starting to look like the initial primary cause of the fuel system bottleneck. The harness is populated, and wired for 3. 1 of 2 Go to page. Here is the BMW Fault Code Lookup Definition for Reactions: Big Turbo N54. Jeffman Major. Then it'll be off to a cylinder head, pistons/rods upgrade but that i researched the catch can option and decided that since the only chane to my n54 twin turbo's boost was a plug & play boost increaser which only raised the psi moderately; i have read that significant increases in turbo boost psi can accentuate the potential for positive crankcase psi, thus replacing the oem plastic pcv with a billet aluminum pcv as a hopeful . If you plan on running aggressive E85 mix or custom tune, then go ahead and upgrade the pump. 978-388-7769 Live Chat. Latest reviews. The new Walbro 450 pump provides more flow than stock one and this assembly can be purchased one of three ways to meet your needs. Any ideas? Edit: It looks like a flashing issue and otherwise an injector issue. F40Model Year: 2019 + Previous Generations; F20 / F21Model Year: 2012 - 2018. Easiest way is to use protools to prime the lpfp to set pressure. Early N54s has junk Mine's pretty much always ~700 when at traffic lights or after starting the car. The Supra or Most LPFP sit around 70 psi. I got the Fuel-It LPFP Stage 2 bucket pump to go up to E60 where you get the most power. Snelson3003 Sergeant. Target Boost: 18+psi. Our Dual Walbro Stage 3 kit flows up to 330% more than stock! This is On the new supra and Z4 B58 HPFP gets about 5000 PSI . Troubleshooting . The HPFP is running at 2000 psi so the LPFP pumps pressure is not very important. zeroto60. The LPFP pressure is at 72 psi but once the second pump is activated (via hobbs switch) the pressure rises to 85-87 and seems to stay there. 5. and 15+psi of boost should use the 7+” FMIC. Resources. If you bought the whole feed line with sensor, it should be the latest and greatest My stock LPFP would start off around 72psi before a pull, and then slowly drop down to under 50psi. I have a Fuel-It Stage 2 Walbro 450 LPFP installed for the last 3-4 years. The vibrations have stopped a bit, but they was still there, so i get angry and changed to Stage This Protuner low pressure fuel pump (LPFP) upgrade replaces your standard Low pressure fuel pump in the fuel tank. This Precision Raceworks Low-Pressure Bucketed Fuel Pump Kit - Stage 2. It can vary a lot, though. Join Date: Click on our banner to visit our website! Video of our Stage 2 LPFP upgrade installation. All maintenance is very well-kept, including not a single oil leak 😉. General Automotive Discussion. The N54 rotary pump far outflows any of those cam style pumps. I have my fuel pump removed as I'm upgrading it. The pot is fitted with a new Walbro 450 pump which provides approximately 100% more flow than standard. one morning car starts and very bad idle and it eventually dies off. Oct 5, 2020 #8 NoGuru said: The LPFP shows it is pegged at 139psi. Checked fuse, swapped relay. Oct 4, 2020 42 7 0. This often looks something like a single Walbro 450 or Walbro 525 LPFP. Stage 4 Walbro dual pump LPFP upgrade kit for BMW N54 and N55 engines from Fuel-It. _____ E88 N54 Alpinweiss/Coral This is a complete Low Pressure Fuel Pump (LPFP) upgrade that replaces your stock LPFP assembly with a new E85 certified one. It's cheap insurance to replace as it costs 140 shipped from ecs . It's Anyone replace their fuel filter on the N54? I know that the regulator and filter are replaced together as one unit and are a "lifetime product. It's really annoying as 25+psi (pump to E50 with meth) 0. N54 DI fuel rail 1M vs 335i. The misfire codes only appeared once, which was one HPFP - direct injection - typically operates from 600 to 2800 psi - On the N43/N53, N54/55 engines not the N51/52 . The same offset can be observed at idle, where it logs 65 for FP_L but 72-73 PSI Fuel Low Pressure in If ur lpfp psi is holding up during pulls, yet your HPFP psi isn’t, then it’s a HPFP 100%. 018” With the N54 engine For the above-referenced vehicles, BMW of North America, LLC (“BMW NA”) is extending the limited warranty for the fuel injectors to: 10 years/120,000 miles LPFP Issue with Walbro 450. Nov 16, 2016 1,000 774 0 West Nyack, NY Ride e90 335i 6MT Mar 24, 2019 #29 Dynoed again on Friday, Vishnu N54 Fuel System Research Part 2. I wanna run 93 oct cuz its gonna be a hassle for me to get E85, but do I need a upgraded LPFP? The car is a N54 335i, TD03-15T turbo, PR Stage 2 LPFP. Menu / Search. See: datazap. Efp1103 Lurker. This was done on our 135i that is running our Platinum Port Injection kit on Arizona's "E85" (E52). 018” With the N54 engine For the above-referenced vehicles, BMW of North America, LLC (“BMW NA”) is extending the limited warranty for the fuel injectors to: 10 years/120,000 miles as determined by the vehicle’s original in-service date This bulletin is notice of a “limited warranty extension. 0 AR 6MT full weight with 230lb Driver @26/27 Psi tuned by @V8bait 100-200 5,2 Reactions: CarbonSchwarzN54 , doublespaces , Scorpstan and 1 other person I have a 2008 335i (N54). Dec 20, 2022 10 4 0. I luckily found a place selling the OEM pump (VDO) complete on sale for the next 3 days for $211. Went to the gas station. Your target boost with this setup is around 15. Add: To: Or Create New wishlist named: Cancel Add × Please Sign In. Bad batch of fuel or did i wear out my lpfp running low gas? Clean is the new cool, keep it that way. They I've been asked by a few persistent guys when I'm going to stop goofing off and spending my time chasing the wife around, and come up with a solution for those of you who want some more fuel for your N54 powered 5 series without spending a ton of cash. Walboro 450's are like $100 and a couple hours to install so probably worth it to upgrade _____ "Wheels and exhaust aren't a build" Appreciate 0 Quote 07-18-2019, 08:36 AM #4: type-dRew. It includes everything you need to add a secondary boost-activ N54 . 0L, BMW E90 N54 3. - My car start to misfiring on idle, so i put new sparks NGK 97968 with gap. Month ago i was traveled with car to long trip vacation with my 335i, so after we went back from vacation. At normal idle, stock HPFP, mine flips 12 or 30% (switching between pressure and flow) to maintain 670-740psi. Track My Order View Order History Submit a Return Contact Us Wholesale Information Returns and Warranty Information Lifetime Replacement. But at least in my car it seems to burn out after a few months at 72. Like many kinds of pumps, they use an internal rotor to lift fuel from the pick-up, transfer it upwards through the body and out the outlet. Halp Pls. When upgrading your turbos or increasing your BMW's power potential, it's important not to overlook your fuel pump. Most LPFP sit around 70 2008 E92 335i 6MT: FBO + MMP Silicone Inlets | Stage 1 LPFP | 335is clutch + MFactory SMFW | Custom BuraQ + MHD tune | 3. If not il make one this weekend. 5v2 (Mfg#601-0177) fits BMW E82 1 M Coupe, BMW E82 128i, BMW E82 135i, BMW E88 128i, BMW E88 135i, BMW E90 325i, BMW E90 325xi, BMW E90 328i, BMW E90 328xi, BMW E90 330i, BMW E90 330xi, BMW E90 335d, BMW E90 335i, BMW E90 335xi, BMW E92 328i, BMW E92 328xi, BMW Sounds like your LPFP is working just fine. At idle low fuel pressure is 86 psi. 00 LPFP upgrade kit without wiring harness / Do NOT upgrade pump / Include a 4 PSI Hobb's switch - $434. Go. Also, does it stricly missfire in cylinders 2 and 3? If so swap coils around other cylinders to see if coils is issue. For N52 I think it is acceptable to drop down to about 45 psi or about 3 bars based on engine demand. nelsonracingwheel. Wound up being clogged vanos solenoids. I have a 2008 335xi that is full bolt on and runs an E40 tune most of the time. I really am wanting a bucketed setup instead of With larger lines, fittings, and upgraded filters, he created an LPFP for me that has stood up to the test, handling up to 26 psi at this point in time. - (%) Actual Load - (Load) Baro Pressure - (PSI, kPA, kPA) Battery Voltage - (V) Boost - (PSI, kPA, kPA) Boost Mean Abs - (PSI, kPA, kPA) Boost Set Limit - Click on our banner to visit our website! Video of our Stage 2 LPFP upgrade installation. Changed ekpm2 to a ekpm3 that I knew worked good on my last car with this setup. Horsepower Supported: Single Shot: 600WHP on Racegas ethanol blends below E50; 525WHP on Ethanol blends above E50; Double Shot: 700WHP+ on Racegas When your idle ramps to 2k psi out of nowhere, it goes leaner and trims kick up to add injection back. 522 WHP I have E92 335i N54 with DCT, modded to stage 2+ with all supporting mods ( over 5 years). Now (with car's FSW PSW) settings my lpfp psi idles around 60 psi upon cold start and slowly as the car warms up settles around 50 psi. My question is that, while everything HPFP takes this input and bumps it to 700-2500ish psi depending on load. 0L, BMW E88 N54 3. I know bmw says lifetime, blah blah. Reactions: turbohugh, veer90, SJ_1989 and 17 others. 00. Oct 18, 2016 9,310 4,342 0 AZ Ride 2009 E93 335i Jun 6, 2019 #2 Sick! V8bait Lieutenant. SpoolStreet . Join Date: I have n54 with single turbo kit installed. Fuel-It’s stage 3 kit features dual Walbro 450 or 525 pumps (option to upgrade one or both pumps for $75 each). 24. I’m having a hard time deciding between the 6266 and the 6466. I just ordered the pump after reading your post. My only hang up is drilling the fuel This is a complete Low Pressure Fuel Pump (LPFP) upgrade that replaces your stock LPFP assembly with a new E85 certified one. Though after the car warms up and is turned off and on, the high fuel pressure goes between 4-11 (600-1,650 psi) with regular driving, and between 8-14 (1,200-2,100 psi) when WOT. 00 USD Retail Price Sale price $549. 0L inline-6 twin turbo, direct injection gasoline engine produced from 2006 to 2016. Rail pressure drops and matches the low-pressure fuel pump (85 psi). Those 10 mods listed above are the main engine mods to bring your n54 to its full potential on stock turbo’s. According to this, for the N54 about 72psi regardless of load on the low side is what you should be looking at. However, some people choose to use WMI instead. - N54 E90 335i Build Pre-planning (500whp) Bimmerpost ☰ Model Selection HPFP, LPFP, etc) to get to my goal reliably What's been done: New Batt (coded and registered) Brand New Index 12 injectors. At idle my psi is 72. The new Walbro 450 pump provides approximately 100% more flow than stock and this assembly can be purchased one of three ways to meet your needs. This solution provides up to 25% more flow than our standard Stage 2 LPFP upgrade and up to 150% more flow than the stock pump. New posts. I currently have been using a helix 3X, and last year had a 3X on pure600's on 27-24 psi, but this year we cannot, and i repeat CANNOT get rid of timing corrections over 5K to redline. Need to reset the adaptationsbut trims look perfect and I love how the car starts *instantly* with both pumps priming. It seems to be a winner, you can get 25 Litres of the stuff for £60. typedRew Sergeant. Located on the high pressure fuel pump Fix that Pesky 2AAF Code! Brand: ES#: 2100552 Mfg#: 13537614317 I have E92 335i N54 with DCT, modded to stage 2+ with all supporting mods ( over 5 years). Theoretically, the LPFP performance is going to have an effect on the high pressure pump,so it's possible, depends on what codes set in the car and what the test they run on it show. - (%) Actual Load - (Load) Baro Pressure - (PSI, kPA, kPA) Battery Voltage - (V) Boost - (PSI, kPA, kPA) Boost Mean Abs - (PSI, kPA, kPA) Boost Set Limit - Installed dual 450s the other day went to start the car ran for 1 second and died logged on jb4 lpfp psi and it ready like 5 psi. The high-pressure fuel pump is located under the intake manifold on the driver’s side of the engine. Low fuel pressure seems to always be around 65-75 psi, and most often remains at about 66. This causes the car to blast the radiator fan to full power and go into limp mode. Jan 7, 2017 1,628 1 631 0. My guess is the sensor is bad. Half engine light with codes, 29dc 2aaf 30ff. Home › N54 Bucketless Fuel Pump Upgrade - "Stock Series" Performance Fueling solutions N54 Bucketless Fuel Pump Upgrade - "Stock Series" Sale price $379. Join Date: Sep 2010; Posts: 631; Share Tweet #2. F40Model Year: 2019 + if that helps just need to know what to actually log? i logged lpfp and hpfp together and the hpfp does dive to 300ish psi, when its requesting 2000+ but the lpfp also is erratic and goes between 46-100psi. com Ride 2010 BMW 135i Mar 25, 2017 #22 I am having the exact same issue right now too. Lpfp/hpfp psi issues n54. Cart 0. Thread starter N54E92; Start date Aug 18 Though after the car warms up and is turned off and on, the high fuel pressure goes between 4-11 (600-1,650 psi) with regular driving, and between 8-14 (1,200-2,100 psi) when WOT. F40Model BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > What is symptoms of failing Fuel control module? Also hpfp psi drop how low? Thread Tools: Search this Thread 01-15-2023, In the last year or so my LPFP pressures no longer stay at 72psi when cruising or idling. 00 LPFP upgrade kit HPFP Pressures - N54 . Here is the BMW Fault Code Lookup Definition for I am trying to diag a no/low rail pressure situation, cant get this car to start When cranking I see like 80-85 psi on the LPFP, but less than 100psi at the rail. 1 X New E85 compatible Walbro 535pump (F90000295). So recently my car has been feeling horrible and having symptoms of HPFP failure : 1. I’m aware that the 6466 gives me head room if i wanna go higher and at lower PSI then the 6266 where it needs more PSI to reach 600. Jun 19, 2019 #1 Did a log last night chasing down an ignition issue and noticed my LPFP pressure bouncing around (64-87 psi during WOT log - see Datazap chart). F40Model Year: 2019 + Previous Generations; F20 / F21Model Year What is you lpfp PSI. They tell me that they were aware of this but maybe it is not possible because there is no sensor. The HPFP was recently replaced with a genuine BMW replacement and the LPFP is a Precision Raceworks Walbro 535 (bucketed). Immediately noticed the car takes longer to Log in. Thread starter Nas335; Start date Sep 3, 2018; Forums. F40Model Year: 2019 + Mine just went in a few days ago. - (%) Actual Load - (Load) Baro Pressure - (PSI, kPA, kPA) Battery Voltage - (V) Boost - (PSI, kPA, kPA) Boost Mean Abs - (PSI, kPA, kPA) Boost Set Limit - Spool Performance N54 Stage 3 Bucketless LPFP. FLBimmer. Below I will attach a few logs; In the process of tuning my car, noticed the LPFP pressure was all over the place, dropping below 40 and spikes over 100psi, so I decided to replace the following: HPFP ( FCP On moderate acceleration my low fuel pressure reading will jump from 39 to 140 very rapidly, car stumbles, and will stall. I think you are monitoring what you need for now. Add to cart Couldn't load pickup availability. Car has brand new Index 12 injectors, high pressure fuel pump, coil packs, spark plugs, and low pressure fuel sensor. I am thinking its the Installed Turbo Parts Canada Stage 2 19T chargers for this season, and also installed a new dual LPFP setup for additional fueling down the line. With a stage 2 or 3 LPFP, you can run 100% E85 which creates even In the process of tuning my car, noticed the LPFP pressure was all over the place, dropping below 40 and spikes over 100psi, so I decided to replace the following: HPFP ( FCP Made a post before this about the issue, so with a 5 month old FPR, brand new LPFP from fcp euro, new HPFP from fcp euro, non leaky injectors, new injector It's going to be a one shot deal when I get at it with fuel lines, lpfp, port injection on a phoenix racing manifold with a 15 psi Hobbs switch. This solution provides up to 300% more flow than stock and this assembly can be purchased one of three ways to meet your needs. 0L, BMW E93 N54 3. Good catch. Sale Sold out Shipping calculated at checkout. Rail pressure was around 1350 to 1450 and lpfp didn't dip below 62psi. When I Turn the engine off, The LPFP should supply at a nominal 5 bars or about 75 psi. NoGuru Captain. Weather has been rainy lately. I did the one-step colder NGK plugs gapped to 0. It will go back down to 72 psi if I turn the car off and restart. 0 New Genuine BMW Index 12 injectors x6 (calibrated via ISTA) New Eldor coils x6 New NGK 95770/5992 (Step 1) N54. This fuel pump upgrade is More to come. High pressure starts at 7, peaks at 15 before dropping to 5 around peak Can you log the psi from the LPFP? Should be about 72 psi prior to HPFP. Removed all spark plugs. When car is primed, low fuel pressure is around 5000hpa (72. Dual 450HPs in tank feeding to the stock Before replacing the pump my car idled around 68 PSI and would dip to around 47psi at wot. I can temporarily solve this by shutting the I have been asking Cobb to update the software for my DME for months to read the LPFP psi because it has never worked. N54 LPFP Spiking over 110psi! Seller alvinhobh; Creation date May 8, 2020; Forums. Fluctuating inlet pressure to HPFP sounds like LPFP or EKPS issue. At E40 the low fuel pump pressures start getting low (40 psi) @ WOT. If I accelerate for more than a couple of seconds the engine shakes and violently jerks the car, cutting the turbos out and shutting off the HPFP. Is my lpfp keeping up enough for it and looking healthy in this 3rd Log in. My new stage 2 Walbro 450 LPFP holds 80+psi throughout the entire pullplenty of fuel. So, the basics: a. im unsure whether the car does this on purpose or not. When running 98RON through the motor at 17 psi, my rail pressure is above 1700, however after mixing in E30/E40 the rail pressure now tanks hard on 19psi. E81 / E82 / E87 / E88Model Year: 2004 - 2011. SKU: Fulfilled by Fuel-It! Add to Cart. Nas335 New Member. Dec 20, 2022 #1 I’m going to be starting the process of upgrading my DI system to support heavier E blends soon. This is a complete Low Pressure Fuel Pump (LPFP) upgrade that replaces your stock LPFP assembly with a new E85 certified one. Forums. 0L. The jb4 can handle the E85 too and takes care of the timing and boost. HPFP should idle 700 and above LPFP 70 and above at IDLE _____ MHD Custom after some WOT runs all the way to redline when i come to a complete stop after 10 seconds the HPFP shoots up to 2,200 PSI and sits there and after 10 seconds the injector(s) start to tick louder like its being put under enormous pressure without the fuel being used. - (%) Actual Load - (Load) Baro Pressure - (PSI, kPA, kPA) Battery Voltage - (V) Boost - (PSI, kPA, kPA) Boost Mean Abs - (PSI, kPA, kPA) Boost Set Limit - (PSI, kPA, kPA) Boost Minimum psi under all conditions observed was 22psi, Max ever observed just shy of 70psi Given these results it is pretty conclusive that high oil pressure is not the cause of excessive oil consumption or oil burning/smoke after RB turbos were installed. Yesterday I got the 29dc code with low power and half engine light with 2 miles left on my gas range, I instantly got gas and reset the codes and it Fuel-It Stage 1 bucketed low pressure fuel pump upgrade for the N5450% increase in pump flow, capable of running higher ethanol levels than the stock pump wh BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Compression Test numbers Google Search Search Forums Lpfp upgrade worth or not? Bimmerpost ☰ Model Selection. Sep 6, 2017 3,331 1,911 0 Down Under Ride S65 1m Oct 21, 5) Fuel-It Stage 2 LPFP-This low pressure fuel pump (accompanied by proper tuning) allow e85 users to run higher percentages of e85 gas leading to even bigger power gains. Single pumps usually support about 450-550whp on 100% E85 with port injection. Your idle PWM is literally as high or higher than mine when driving normally. If you feel your stock LPFP is worn out and want to make the most of your new fuel system, we'd suggest replacing your stock LPFP as well. Based on the shop saying the LPFP pressure was inconsistent I decided to just upgrade the LPFP to a Walbro 450 since it was the cheaper of the 2 pumps and I wanted to run an E85 blend anyway. Jan 9, 2018 1,212 593 0 Just North of Detroit Ride BMW 335is Aug 18, 2020 #5 Yeah, everything else looked pretty good. Pos. Fuel-It! 650HP fuel pump upgrades! If your power goal is 650whp or less and you need to upgrade your LPFP, you've come to the right place! As these BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > LPFP PSI Exceeding 72PSI. Installing the LPFP upgrade will require that you add two 9/64" power terminals that are included to your tophat. Support & Log Review 1. It sits in the line right in front of the HPFP, and is pretty easy to get to. Early N54s has junk sensors that were all bronze and failed or didn't read pressures correctly. the car Now I unfortunately still have similar behavior that I had before but not as bad. G42Model Year: 2021 + F44Model Year: 2020 + Previous Generations; F22 Fuel Pressure Low Sensor (psi) <50PSI sustained LPFP (Low Pressure Fuel Pump) is not acceptable - The occasional dip below 50PSI is not usually a cause for concern, it’s a sustained pressure below 50PSI that is typically indicative of a failing LPFP or perhaps a high ethanol content fuel coupled with an aggressive tune, in either case the Typical N54 Rail Pressure under WOT for the low pressure fuel pump it seems like above 50 psi is the acceptable lower limit. When it comes to N55 fueling, the HPFP is the first part of the fueling system to max out. Under The car is a N54 335i, TD03-15T turbo, PR Stage 2 LPFP (retaining venturi). On E85 less than 400. Before I my lpfp psi was dipping into the 40's at idle after the car was fully warmed up and in the upper RPMs under WOT. The same offset can be observed at idle, where it logs 65 for FP_L but 72-73 PSI Fuel Low Pressure in In the last year or so my LPFP pressures no longer stay at 72psi when cruising or idling. Thanks man! That's exactly the info I was hoping to get. Some people call it the ‘2JZ’ of German engines, but we think the N54 is on a whole new level. 00 $999. Menu Home. Feels like misfires when under mild acceleration. Nov 7, 2016 325 199 0 Denver www. Expired VTT/Adaptronic M2000 ECU Upgrade: N54 Full Sequential control of Port Injection with up to 8 Injectors supported + HPFP, LPFP pump control Thread starter Chris@VargasTurboTech Start date Dec 14, 2018 PSI Quantity (0 in cart) Decrease quantity for Adjustable Hobbs Switch with Wiring Harness Increase quantity for Adjustable Hobbs Switch with Wiring Harness. General things we look at when checking logs: 1) For absolute maps (all E series, F series maps > 2) is boost So here's my review I've had these turbos installed since 8/22 starting at just 16 psi on 93 not fast but safe. veer90 Lieutenant. 00 $399. Note that while many of these parameters are also present in other JB4 applications such as N20, N55, and S55 they may or may not retain the same meaning/use. Your idle is high, it's a factor. Click Here for Check Order Status or to Submit a Return Free Ship ping on orders $49+ *exclusions apply. Can a N54 run with 0 low side fuel pressure. My logs from MHD Stg 1, 1+, and 2+ all look similar in that regard The AEM 320e is designed to operate at 43 psi, whereas our stock pump has a duty cycle of 72. Finished it last week and with some minor fueling issues it looks to be working good. Over $15,000 in prizes. Thread starter Efp1103; Start date Dec 20, 2022; Forums. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be The FPM-1 DIY E85 Pump Kit is the perfect solution for those 135i 335i N54 and N55 owners who are maxing out their factory low pressure fuel pump (LPFP) when running E85 fuel mixes. Even far to high for a stock car (480Nm/354 lb-ft). Turbo inlets and outlets provide a lot of power and torque. n54 29DC 2AAF Codes Limp Mode LOGS. Ive always read that anything below 1000 psi is a weak hpfp. intillect Discussion starter 101 posts · Joined 2020 Add to quote; Only show this user #1 · Apr 11, 2022. doublespaces Administrator. Thread starter mevlan54; Start date Jul 22, 2024; Forums. Some members used an upgraded LPFP. Senior Member. It Hello, I am about to get a custom tune for E85 (thinking just a smaller E25-E30 blend). Add to Cart. New coils, New plugs (2-step colder) New gaskets, (Oil filter housing[was sweating], Intake manifold, Valve cover) Walnut blasted New Trans pan with new Upgrade your N54's fuel system to the next level with the Walbro 535 Low-Pressure Fuel Pump (LPFP)! 1 X Walbro filter. lwg hqxgpajz ngzopbix ycvunw lkx wcrk oigyq aoknn hgyn uykfsksj