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Thread: Fuel trim malfunction

  1. #1
    Regular Member tommyk999's Avatar
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    Default Fuel trim malfunction

    Hi Guys
    Should i worry i just identified fault codes on my car.
    First two are Fuel trim malfunction bank 1 and bank 2
    Second is Ambient air temp sensor circuit.
    Any advise? Thx

  2. #2
    Regular Member tommyk999's Avatar
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    Default

    Anybody???

  3. #3
    Full Member Big Sig's Avatar
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    Default

    Could be an air leak. Were the codes p0170 and p0173?
    Now I need a turbo to keep up!

  4. #4
    Regular Member tommyk999's Avatar
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    yes 170 173
    air leak and where?

  5. #5
    Regular Member tommyk999's Avatar
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    Default


  6. #6
    Regular Member Ste's Avatar
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    Vehicle : Jaguar XF 3.0D V6

    Trim : Black

    Engine : 3.0D V6

    Year : 0000

    Default

    I woukld check the MAF sensor and any leaks after it to the intake

  7. #7
    Full Member Big Sig's Avatar
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    Its probably sucking air in through a split pipe or gasket. Failing that get the o2 sensors checked - as a last resort.
    Now I need a turbo to keep up!

  8. #8
    Regular Member tommyk999's Avatar
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    Default

    Ok i check that
    Thank you

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