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Thread: running rich problem

  1. #1
    Join Date
    Oct 2005
    Location
    PA
    Posts
    14
    My Cars
    1991 318i

    running rich problem

    i have a 91 318, and i was getting the fault code 1222, and i guess that means the car is running lean or rich - well the oil smells like gas and and level has risen a little bit, so i'm guessing its running rich - anybody think they might konw whats wrong? i saw there was a separate code for the O2 sensor, but i didn't get that from the car. jsut taht it was running rich or lean - thanks, Luke

  2. #2
    Join Date
    May 2005
    Location
    Houston, TX.
    Posts
    21,298
    My Cars
    15 X5, 02 330i, 09 MiniS
    1222 Lambda Control 1

    Thats a O2 sensor.
    Tenured Automotive Service Professional - Avid BMW Enthusiast

  3. #3
    Join Date
    Oct 2005
    Location
    PA
    Posts
    14
    My Cars
    1991 318i
    do u know a good way to check for sure? i have the chilton manual and it goes through some stuff using a volt meter, but it talks about some cars having a HO2/O2 sensor - i don't think my car has that, is taht only on newer ones?

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