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  1. E39 (1997 - 2003)
    hi everyone. recently i had a short in my o2 sensor connector for b1s1 which was fixed by my mechanic. however ever since i have been getting this p1083 code and the b1s1 voltage flatlining at ~0.33V when driving i just then checked with key on engine off and the voltage is at 1.275V whereas...
  2. E46 (1999 - 2006)
    I have been chasing my Lean Codes (P0171 & P0174) for so many years; it is not even funny. I did many things but never found the cause. There were a few things I never tried. One was the MAF sensor. There is no reliable way to test it if it is really defective or not. It is an expensive item...
  3. X5 E53 (1999 - 2006)
    So I have a 2002 X5, it's a 3.0 litre (M54) I bought it for my wife a while ago. To make a long story short the MIL light (malfunction indicator light, service engine soon) was on when I bought it. I have worked on cars before, quite a bit, but never a Beemer, so I bought service manual...
  4. E39 (1997 - 2003)
    I have a 2002 E39 530i that will not start or crank. Lights come on, fuel pump engages but starter will not turn with key. Last week I left my car outside in 10-30 degree weather for a week while I was out of town. When I came back "check coolant" was illuminated on the dash. It had trouble...
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