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p0171 p0174
1-11 of 11 Results
  1. E46 (1999 - 2006)
    Ok so owner of 98 318i and now a 01 325xi ..Xi codes p0171 74, misfires. Changes plugs and coils.... it stutters,, cut off once ... cold start I am nervous to drive til warm because of cut off....could it be fuel pump or something more major , are the vacuum hoses hard to change?and visibly no...
  2. E46 (1999 - 2006)
    2004 325ci 5spd 175,000 miles ----------------- purchased 4 months ago ----------------- LTFT was at 11.4% STFT was at 4% MAF 2.8 warm 3.8 cold changed oil, and replaced homemade CAI with stock air box and replaced in-cabin air filter STFT shot up to 27.3% and LTFT hangs out around 30%...
  3. E90/E91/E92/E93 (2006 - 2013)
    Hi everyone, I've been trying to solve vacuum leak codes for a while. I have been hearing a vacuum leak when around 2500-3000 rpm. The dealer blamed my cold air intake for the codes and performed a smoke test with no results... However I never had any issue with the intake before, and now i get...
  4. E90/E91/E92/E93 (2006 - 2013)
    Hey everyone, I am new to the forums and appreciate any help I can get. I am currently chasing a few problems with my 07 328i. I am getting p0171 and p0174 codes. I had 2 recalls done at the dealership and asked them to look into the codes for me. They ran a smoke test and came up with no air...
  5. E46 (1999 - 2006)
    This is my first post on any BMW forum so lets hope it goes well. A few months ago I got P0171 and P0174 codes on my 2004 330ci, did some research and my own diagnosis on my car. No vacuum leaks as far as I have checked but I still replaced my ccv system anyways because it was old and brittle...
  6. E46 (1999 - 2006)
    Hello everyone, I am new to the forum. I've actually joined because in my adventures thus far with my e46, I have referred to this website for help quite a bit. I'd appreciate any help I can get in this thread! So! Here's the story thus far. About 2 months ago, I started getting lean codes for...
  7. E46 (1999 - 2006)
    Hi everyone, First of all I am a newbie to these forums and I want to thank you all in advanced for any help I receive. I have a 2003 330CI and I am getting lean codes and have a slight misfire. I have a full scanner that gives me all of the bmw codes but the only ones present are P0171 and...
  8. X5 E70 (2007 - 2013)
    I need help with my 2007 X5 3.0si. After driving it for a few minutes the radiator fan turns on high and soon the car will only allow you to go ~20mph and a warning comes up saying that the Engine Temperature is too hot and to drive moderately to allow it to cool. After shutting off the engine...
  9. E39 (1997 - 2003)
    I'm trying to locate all the vacuum hoses in the E39: > Might we be able to list, with pics (realoem diagrams ok) of ALL E39 vacuum lines? The realoem diagrams come up short in explaining exactly where the ends are for some of the hoses. May I ask the tribe to pitch in and identify, for all...
  10. X3 E83 (2004 - 2010)
    I am ready to scream. I have a 2005 X3 3. with a check engine light on now for 3 months. After taking it to AutoZone..determined both error codes (P0171 and 74). Lean on both banks. Not knowing a thing about cars..let alone an X3 (but learning) I have learned that it could possibly be the MAF...
  11. E39 (1997 - 2003)
    After much stress and frustration, i've finally corrected my p0171/p0174 OBD codes on my 2000 540iT. It's a problem that's been haunting my car for months. I have an ELMSCAN tool I used to read and reset the codes on the OBD. The CEL would come on after a couple drives. It seemed "almost...
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