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p1397

  1. **ANNOYING and weird P1397 Code/check engine light**

    General E46 Forum
    I originally got this code about 6 months ago. I replaced both the intake and exhaust CPS clearing the error only to have it return after driving anywhere's from 5min to an hour after. Even before the sensors were swapped there was no issues with starting or steady idling, just an annoying...
  2. Engine running horrible - lots of codes - HELP!!!

    General E46 Forum
    Ok, here's my history. Got a 2000 328i a month ago. Drove it all the way back to Indiana from Texas and it drove great. No codes, so I thought. A few days later, I noticed it was idling rough until it got to temperature. It would be at 700 rpm's and then almost stall as it would drop to...
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