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  1. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi all, Over the last few days I noticed the revs at idle we fluctuating ever so slightly then normal and the car feeling a little rough. I used the Torque OBD diagnostic tool via my phone to scan for any codes and it showed two pending codes - P0170 Fuel Trim (Bank 1) and P0173 (Fuel Trim...
  2. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hello All, BMW 323CI SE Coupe - E46 - M52 - 1999 - 37K Miles Need a bit of advice on tracking down an air leak on this 1999 323 I have just purchased. Or any other suggestions on what could be the cause of the symptoms? The car idles at a steady 750 rpm after having a bit of rumble and cough...
  3. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hey guys, Now i know this has been covered a thousand times, i have trailed though every forum looking for ideas, and tried everything, and iv given up and will ask if anyone has any other ideas? I have access to inpa & DIS, and I'm getting code p0170 with the CEL every third journey or so...
  4. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi everyone, I have a real problem diagnosing a fault with my 2000 e46 325ci, I would love some perspective from anyone who has had similar issues. so long story but might be relevant car has LPG conversion and normally runs really well and gets around 30mpg LPG and 33mpg on petrol, recently...
  5. BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hi all new to both this and BMW. Just bought a 523i auto wreg 130k and getting all sorts of fault codes I've had p0170/p0173/p0300/p0150 there not on every time main ones being the p0170/p173 car seems to have a slight misfire on idle but drives OK any he would be greatfull
  6. BMW Tuning Forum
    What is a fuel trim malfunction(bank 1)
  7. General BMW Discussions
    Hi all I scanned my BMW 318 touring 2000 w reg today and the engine light was on and the scanner picked up a code p0170 fuel trim bank 1 . No other codes was picked up , It has just had a new maf fitted so it's not that lol Please can anyone tell me what to look for and where !!! Pictures...
  8. Auto Electrical Forum
    Hi all, Am new to these forums but though I'd ask the question to see if anyone may help. I have a 318CI 51reg (m43TU engine) with nearly 100k on the clock. The engine management light came on the other day so I read the codes as follows:- P0141 - O2 Sensor Heater Circuit Malfunction (Bank 1...
  9. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi, I had Engine light on ever since I bought the car (82000 miles) from a used car dealer. I think he just cleared the code and never bothered to fix, surprise surprise! Anyway the car has always seemed to drive well. My mechanic cleared the code (p0170 fuel trim bank 1) and I then fitted a...
  10. BMW 3 Series Forum - Technical Talk on the BMW E46
    hello, i have a x reg 318 ci and the emissions light has come on, i use a mac tools code reader and it has read the code p0170 Fuel Trim Malfunction (Bank 1) has anybody had this fault or anybody know how to tackle this problem? many thanks stephen
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