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Thread: Check Engine Light and Code 1221: SOLVED!

  1. #1
    Join Date
    Jan 2003
    Location
    MN
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    4,954
    My Cars
    E70d

    Check Engine Light and Code 1221: SOLVED!

    It's so nice to know what the CEL is on for!

    After researching, Ive found that the code 1221 which I am getting is the primary O2 sensor and when the code is pushed, it is probably clogged, or broken.

    Of course it's clogged with carbon on mine, with no catalytic converters (downside to track pipe #2).

    Thought some of you might benefit from that info!

  2. #2
    Join Date
    Sep 2009
    Location
    Queens N.Y.
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    999
    My Cars
    2000 e39 540i/6 e36 325I
    im on my girls lab but hears somethin for that 1221


    http://forums.bimmerforums.com/forum...d.php?t=363452

  3. #3
    Join Date
    Jan 2003
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    MN
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    4,954
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    E70d
    Quote Originally Posted by walker7182006 View Post
    im on my girls lab but hears somethin for that 1221


    http://forums.bimmerforums.com/forum...d.php?t=363452
    Oh dear god, 5 year old thread alert AND infinite loop.

  4. #4
    Join Date
    Oct 2004
    Location
    Los Angeles, CA
    Posts
    2,777
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    Ferrari 458, Model 3
    Quote Originally Posted by GEN3RIC View Post
    Oh dear god, 5 year old thread alert AND infinite loop.
    and he's on his girlfriend's dog

    Quote Originally Posted by walker7182006 View Post
    im on my girls lab but hears somethin for that 1221


    http://forums.bimmerforums.com/forum...d.php?t=363452
    UUC EVO III SSK | M50 Intake Manifold | Conforti 3.5" CAI | AA Software | 3.5" HFM (unplugged)
    Fan Delete | Strömung Exhaust | UUC Stg2 Ltw Flywheel | X-Brace | AA Track Pipe | 3.46 Differential


    1/4 mile: 13.3@104.2mph; 8.6 in 1/8; 2.04 60' | Best 1/8 mile: 8.3@83mph; 1.81 60'
    Dyno: 242rwhp/232rwtq
    SOLD

  5. #5
    Join Date
    Oct 2009
    Location
    Dublin, OH
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    7,886
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    '95 M3, '17 Civic Si
    Quote Originally Posted by jworms View Post
    and he's on his girlfriend's dog


    -Rich-


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