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fuel trim
1-9 of 10 Results
  1. General BMW Questions
    Hello so I was reading into another forum about a stuck cylinder 5 misfire and someone in the post said to check long fuel trims if it's above 5 it's worth investigation. Seeing as mind is at 11.7 What should I do to solve this issue? Would it be a vacuum line? Or would it be something else any...
  2. E46 (1999 - 2006)
    Hey everyone, I've been creeping on the forums here for some time now, about 6 months (almost immediately after getting my car). I drive an e46 2005 330xi , about 260,000 km on it. Shortly after getting the car (around December), I had the CEL come on for lean conditions in both banks. I got...
  3. E46 (1999 - 2006)
    Hi everyone, I'm a little stumped. I have a 2005 e46 w/108,000 miles on it. Recently the eml came on and the scan tool pulled the code: P0302. Cyl 2 misfire. I've swapped out the plugs, coils and injectors with different cylinders, all other cylinders continue to run ok, and cylinder 2...
  4. X3 E83 (2004 - 2010)
    2006 BMW X3 3.0 Throwing codes p0171 and p0174 band 1 and 2 are too lean. I ran live diagnostics on the car while driving. The O2 Bank 1 and 2 sensors short term fuel trim is showing at a constant 92%. The data also says the fuel system is maintaining an open loop on system b. Why wouldn't the...
  5. Do-It-Yourself H.Q.
    Hello, appreciate if you could comment on these INPA readings, if they are ok or is there any possible fuel trim fault that can be fixed. Thanks!
  6. E39 (1997 - 2003)
    I've been searching the forums but can't quite find an answer. First a little history, bought the 98 528i three years ago with a cracked head from overheating. I Replaced the head, all new cooling system, new plugs, new fuel pump, and rebuilt the vanos. The only issue I've had is after...
  7. E46 (1999 - 2006)
    Hi guys, I've been lurking forever and have found much useful info here, but I'm battling an issue with high fuel consumption and after reading through 100s of fuel trim related posts I can't seem to find one that matches my condition. :eeps: Basically, my car is doing about 18-20l/100km in...
  8. 7 Series - E38 (1995 - 2001)
    My 01 740i recently threw Fuel Trim Adaptation Additive Bank 1 and Bank 2 High M52: engine oil temp sensor ckt on Bank 2 OBD2 Code. Car has about 155k miles and has recently had oil, spark plugs, and valve cover gaskets changed. It still idles rough and has a bit of a howling noise on startup...
  9. E36 (1991 - 1999)
    Hey guys, I've been chasing a fuel trim issue for quite some time and need some expert help. I'm including a lot of data, so hopefully it will accelerate and narrow the areas of investigation. The facts: 1999 E36 M3, 96k miles, Supercharged via AA Twin-screw (9lb psi), stock exhaust -O2...
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