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Thread: CEL Codes

  1. #1
    HudsonZ3
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    CEL Codes

    A couple 100 miles ago I had my 1998 Z3 1.9 serviced (90,000)- replaced cooling system, replaced wornout PCV, oil, filter etc... Leaving the shop I noticed the CEL was on (it wasn't before the service). Thought I would run a tank full of gas through to see if it went out. It didn't. Today I had the codes read at AutoZone. Can anyone tell me what they mean? Codes are P1174 and P1423. Thanks.


  2. #2
    ZGator
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    Re: CEL Codes

    P1174 Fuel Trim Adaptation Additive Bank 1 Malfunction

    P1423 Secondary Air System Bank 1

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