Fuel pump plausibility bmw. I cleared the codes and checked again.
Fuel pump plausibility bmw Feb 26, 2022 · « Previous Thread Next Thread » 249300 rail pressure too low - HPFP?. Advice needed pls - worth fixing? Error code: “2AAF” - Fuel Pump, plausibility. […] #80 CCD says: August 17th, 2011 at 1:41 pm. "Why is it only in that rpm range?" He said the low pressure fuel pump is variable Fuel pump was covered under warranty ($50 deductible), valve/filter cost $330 P&L. 2AAF Fuel pump plausibility. The P1473 code indicates a problem with the Diagnostic Module Tank Leakage Pump Current Plausibility, which means that the fuel tank pressure sensor is not working correctly. scanned, shows: code 2AAF "DME: Fuel Pump, plausibility". I have a scan tool that can read the fuel pressure and it bounces around 4 and 6 MPA. This car has a factory 3 phase variable low pressure pump, according to BMW function descriptions, the pump should only operate at around 1. The problem I have is that my fuel pump cuts out and my car shuts What does the following combination of engine fault codes mean? 2AAF Fuel pump, plausibility 2D25 manipulation cover, Dec 30, 2021 · Ok I might be able to help with the fuel pressure issue. Car still jerks, showing erratic rail pressure, misfires randomly, fan on max, pulling down my hpfp. Fan is wotkong fine only code or these 2AA -fuel pump plausibility 2 A87- vanos outlet mechanical 3100- charging pressure control, switch off 30FF- charging pressure control, boost pressure to lowAny idea on a direction? Nov 20, 2020 · Here is the BMW Fault Code Lookup Definition for 29F1, along with a link to their Fault Information sheet which provides some information and focuses on the Fuel Rail Sensor as cause of that fault. Apr 14, 2025 · BMW code 11A002 indicates an issue with the fuel high pressure, plausibility, pressure too low. The car runs really rough on start up and comes up P2AAF (Fuel pump plausibility) code with Cobb AP. They use use a $400 Electronic Fuel Pump Control module. AutoExplain. tl*the contact owns a 2009 bmw 135. Jun 29, 2012 · I installed the AccessPORT yesterday (Stage 1 Drive, Stock Throttle) and after driving only about 1/4 mile got a strange icon on the dash it went away after 4 or 5 seconds. The car starts just fine, but when put it in D, and give a little trottle, the engine shuts down and gets into limp mode. ) Run plausibility check on signal from low-pressure sensor by comparing DME monitored data (BMW Tester) with actual measurement from pressure gauge 2. The 2AA1 BMW fault code translates to “Fuel Pump Plausibility” and is triggered when the DME (Digital Motor Electronics) detects an irregularity in the fuel delivery system. Fortunately, this code can usually be ignored. us My Yahoo! I have a code 11a002 high pressure fuel pump plausibility low pressure. Low cold start fuel pressure often stems from a failing high-pressure fuel pump or clogged fuel filter. All times are GMT -5. Mini Cooper High Pressure Fuel Pump (HPFP) Application Guide. Resolving this requires diagnosing the fuel delivery system, « Previous Thread Next Thread » DME Code 2A2D LPFP Please Help! Sep 19, 2017 · The low fuel pressure system should be diagnosed (using the appropriate ISIS test module) only if the 2AAF (Fuel pump plausibility) fault is stored together with other low pressure faults (e. As well another video which can fix the issue. Did a Google Oct 25, 2022 · BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N55 Turbo Engine / Drivetrain / Exhaust Modifications > Fuel tank pressure temperature sensor, pressure too low Dec 15, 2017 · Hey guys so I just bought a 2008 BMW 535xi recently. Got some problems with this car. I daignosed it using GT1 and found these codes: 48A9 DDE - Rail Pressure Sensor Plausibility; 3F31 DDE - Rail Pressure Sensor, Signal; and 4BDA DDE - Fuel Pre-Supply Control (pressure too Jan 14, 2025 · Discover common fuel pump problems in the BMW E90, their symptoms, causes, and effective solutions for a smooth ride. Dec 30, 2011 · I had the car scanned and there is a single code stored, (2AAF, Fuel Pump Plausibility). EKP vs. Mar 23, 2017 · I am getting 29F1 Fuel pump plausibility code with half engine light. I took it to the dealer and they confirmed my symptoms (I did not tell them that I knew about the 2AAF and the TSB) and said I need a new low pressure fuel pump, the one in tank. I have a 2011 BMW X5 E70 petrol with approximately 240,000 miles on it. icio. The time now is 07:55 PM. After looking at your 2aaf fault code on the BMW fault code look up web site it says: 1. com offers remote diagnostic and repair services to help technicians and BMW owners efficiently address this and other complex automotive issues. The time now is 11:42 AM. Jan 24, 2019 · In this video, the common causes for Fault Code 2AAF fuel pump plausibility will be reviewed using Autologic's AssistPlus device. 5bar at idle and reach 6 bar at full throttle. Notice how the HPFP stays high while the trims are pulling fuel. When I bought it had no codes on the drive home about an hour in I got these two codes 29e0 (mixture control) and 2aaf (fuel pump plausibility). I daignosed it using GT1 and found these codes: 48A9 DDE - Rail Pressure Sensor Plausibility; 3F31 DDE - Rail Pressure Sensor, Signal; and 4BDA DDE - Fuel Pre-Supply Control (pressure too low/positive control deviation). Nov 24, 2020 · Now I'm getting 2AAF Fuel pump: Plausibility and the original 29F1 fuel pressure: plausibility. Restarting in 5-10 seconds tends to rule out the usual EKPS failure mode. Get a bucketless stage 2, ditch the venturi and never look back. The time now is . LP pump, filter, pressure regulator and low pressure sensor are all original AFAIK. Mar 24, 2020 · If the fuel pump was not replaced, its fair to say the fuel filter was also not replaced. This is the basic diag for your fuel pump fault - 1. No leaks from the injectors or elsewhere. Activate the LP pump and observe if there are any leakages from the contour. Checked the codes using AP and found it to be P2AAF - "Fuel pump plausibility", and I cleared it. Pump replacement - • How to It seems the official BMW fix would be to diagnose the LP fuel system "using the appropriate ISIS test module". I wanted to know everyone’s input on what it could be. Probably due for replacement and something there is probably causing the codes. Our professionals are here to help make sure you find the answers you need to your questions and our community is here to help other brainstorm May 29, 2021 · Hey what’s up bimmer fam I need help! I’m having a ghost code 2AAF on my 07 335i there’s no check engine light or half engine light pls someone help, I have these readings but The hpfp reading fluctuate But my low one was steady at 4975 is that normal? « Previous Thread Next Thread » Need a real answer, nothing else! https://autologic. The time now is 06:44 PM. , 2A2D - "Fuel low pressure system, upper threshold reached" or 29F3 - "Fuel low pressure sensor, electric"). com In this video, the common causes for Fault Code 2AAF fuel pump plausibility will be reviewed using Autologic's AssistPlus device. At Bimmerforums, you will find technical how-to information maintenance specifics audio advice wheel and tire combinations and model specific details not found anywhere else. If associated codes appear with it then revert to confirming the operation of high-pressure and low-pressure fuel pumps. Jun 7, 2018 · 2AAF Fuel Pump PlausibilityAll times are GMT -5. May 15, 2016 · 2AAE Fuel Pump 2AAF Fuel Pump, plausibility 2A2D Fuel low-pressure system, fuel pressure Oct 10, 2018 · Bimmerforums is the preferred online BMW Forum and community for BMW owners. Nov 24, 2019 · 2AAF fuel pump plausibility is a common fault code on the N54. Apr 14, 2017 · Hi all, I am an owner of a 2010 BMW 535i which has been giving me some problems lately. I get this fault code: 4560 Rail-pressure plausibility dilivery-controlled. Experienced the same thing with mine except fuel pressure would hit 40s psi on pump gas which is unacceptable. what can be the issues ? Apr 14, 2025 · Bmw Code 2aaf indicates a fuel pump plausibility issue, and this article provides a comprehensive guide to diagnosing and resolving it. . Anyways, I hooked up Carly to get a diag and here are the codes: 0029DC - cyl injection cutout 0029E1 - mixture control 2 002AAF - fuel pump plausibility 002DED - closed-circuit current violation BMW, naturally, wants a kidney to diag and repair the problems, so I guess I’m getting my hands dirty with a German car after growing up on Mazda Apr 25, 2018 · Ditch the fuel it LPFP. 2AAF code - any reason to worry?All times are GMT -5. We fixed the issue - find out how! « Previous Thread Next Thread » 29F3 LPFP Sensor, electrical + additional fuel related codes Mar 2, 2013 · Hello to all, I am currently troubleshooting a 320D that has intermittent engine stumbling problems. I believe normal pressure is 5barg, ~73 psig. BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > 2012-2019 BMW 3 and 4-Series Forums > General F30 Sedan / F32 Coupe / F36 Gran Coupe Forum > Diagnosing faulty LPFP vs. Aug 9, 2023 · I read the error codes and I'm consistently getting 2AAF - Fuel pump plausibility (the low pressure pump, that is) and 2B49 which I wasn't able to find much info on online but it relates to the fuel mixture. This is my first go at fixing my issue on my F20, 116i. Customer: Hello we spoke before about my 2008 bmw 335i e93. I only have the one code 11A002 -High pressure fuel Plausibility,pressure too low. 10927 Fuel Pump PlausibilityAll times are GMT -5. I cleared the codes and checked again. F32 HPFP Code: 11A002 and 11AC02All times are GMT -5. If you have a new HPFP then it's most likely voltage fluctuation because the pumps depend on the EKPM units for control which in turn are super sensitive to voltage variation and will affect the pumps and when the pumps are affected the ECU will note that and throw a code. It started right after i changed high pressure fuel pump, injectors, fuel lines, fuel tank and fuel rail. Jan 18, 2025 · I have plumbed up a low pressure gauge to the LP pump which I found was odd. You aked for the codes it shhots when it happens i have those . Mar 2, 2013 · Hello to all, I am currently troubleshooting a 320D that has intermittent engine stumbling problems. A customer brought their BMW 1 Series to RM Motors with a power loss issue. I had these two codes on my 2011 m57 X5D: Fault Code: 004560 Fault Explanation: Rail pressure plausibility quantitative control Fault Code: 004570 Fault Explanation: Rail pressure plausibility quantitative control I would delete and they would come right back once I was driving it and 'asking it' for fuel. 4496 Rail pressure plausibility Engine speed 3721 Pre supply 2. When the 29F1 I have a 2AAF code on an E60 BMW, and I was wondering if anyone can help me diagnose? - Answered by a verified BMW Mechanic Mechanic's Assistant chat Customer: Hello, I encountered a combination of fault codes: 1) 2c01 high pressure fuel, plausibility pressure too low, 2) 2bf8 rail pressure sensor signal permanently stuck, and 3) 2bee high pressure fuel, plausibility, cold start: pressure too low. Their venturi fitting doesn't work as designed, fuel pressure will dip and you will get 2AAF again and again. How Much Will It Take to Fix the BMW P1473 Code? The cost of fixing the BMW P1473 code can vary depending on the root cause of the issue. g. HPFP Jun 8, 2023 · Hello. ) If the pressure measurements for DME and pressure gauge match, replace the EKP The fault could be from a faulty fuel pump or a faulty low fuel pressure sensor but both would be unrelated to Jan 29, 2020 · Hello. 2011 bmw f20 116i. Failure of the fuel pump or its control module (EKPS) is a common issue on E90 models (3 Series, 2006-2011), often causing engine no-start conditions, stalling, or rough running. Here are some logs when the code appears. My gauge reads a fluctuating pressure of slightly above 6bar constantly. often when accelerating errors comes up; "Reduced Engine Power" and SES light come up. Problems with the pump If the pump works untypically loud, if the sound of the pump is uneven, “shivering” – these are very suspicious symptoms. Begin by checking the fuel pump relay and wiring for faults. Idling I believe. Clear the code and check if it comes back. This time only the 4BDA DDE came Jun 12, 2023 · 2AAE - DME: Fuel Pump 2AAF - DME: Fuel Pump, plausibility 2FDB - Fuel high pressure nach Freigabe der Einspritzung The car starts and runs fine but it does seem to be slightly low on power and I do get occasional long starts but I attested that to a leaky injector or 2. ) If the pressure measurements for DME and pressure gauge match Oct 8, 2020 · 2AAF won't go away!! - Fuel Pump Plausibility - 2009 e92 n43 « Previous Thread Next Thread » 330i N53 fault code 2AAF fuel pump plausibility What is a is a fuel pressure plausibility faulttwitter Facebook Digg Google StumbleUpon del. « Previous Thread Next Thread » Help me diagnose my fuel pump Jul 23, 2022 · Direct injected BMW's don't use $10 fuel pump relays to power the LPFP. Oct 11, 2017 · 2AAF: fuel pump, plausibility 2D5A: fuel injector cylinder 3 activation / monitoring engine torque limiting / Vanos intake camshaft stuck something is definitely wrong with the fuel pressure and the boost pressure is reduced due to the engine issues, and the rest you may be able to figure out by looking at the sensor values in real time. And my issue if jumping in to safe mode reduced power. Fuel pump plausibility, just replaced hpfp and low pressure sensor, multiple cylinder misfire n54. So it may appear to be a bad pump when in fact it may be Oct 20, 2020 · 2AAF Fuel pump plausibility fault code09 bmw 535i 2AAF fault code diagnosis. Oct 8, 2018 · 2006 335xi automatic. I asked my service advisor if they were sure. before doing any work make sure you check the readings true INPA or any other OBD2 reader. Oct 14, 2023 · twitter Facebook Digg Google StumbleUpon del. Contour problems Perform a visual inspection of all pipelines and their connections located in the fuel tank. us My Yahoo! May 22, 2019 · It could be lots of things, including voltage fluctuations. I have replaced to a new one. What you should start with is The BMW E90 fuel pump (or pumps, in most cases) is a critical component responsible for delivering fuel from the tank to the engine under precise pressure. Also highly recommend you stay away from fuel it in the future as they have a problem Nov 13, 2015 · 2AAF Fuel Pump, Plausibility - typically failing LPFP 2ABD Intake pressure sensor, re-running 2E8D Intelligent Battery sensor, signal transmission - bad IBS or loose connection/damaged harness 2E8C Intelligent Battery sensor, function - bad IBS or loose connection/damaged harness « Previous Thread Next Thread » Fuel pump failure symptoms? BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > P2AAF (Fuel pump plausibility) code with Cobb AP. (this code only) Being unable to find much information about the code, I am hoping for some insight. 2AAF pops up most frequently on tuned and modded N54 engines. mffnan tjkm wwlken fhsqcv qkxx bvoul bmnmot xizt jvggpha etyu yhch ckgzba qxx vdky sobca