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Thread: P1112 Confusion. Help

  1. #1
    Regular Member lizard's Avatar
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    Default P1112 Confusion. Help

    Got a EM light coming on all the time now with the above code,

    P1112 Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage

    I have 3 OBDII lists and they all say the same, but, after pluging laptop in today with OpCom its saying P1112 Swirl Valve Stuck. I had one of these replaced under warrent less than 2 years ago. Anyone got any ideas.

    Oh, car running fine though...

    Cheers in advance peoples...

  2. #2
    Regular Member Sambor's Avatar
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    You should go back to garage where it has been done!When I cleaned my inlet manifold and swire flaps and now everything fine.What engine do You have?

  3. #3
    Regular Member lizard's Avatar
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    2.2 Direct matey, Already been on to local dealer and Vauxhall Uk about it, Vauxhall Uk said its probably coked up, I explained to them that it is always the higher ron fuels i use and redex in about once a month so how could it coke up to the point of failre in less than 2 years..... aarrrrrrrrggggghhhhh, no answer. Getting call from Vauxhall Uk tomorrow, still confused about fault code though...

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    Regular Member Sambor's Avatar
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    It should be under guarantee!I think,You sould't use redex!In VX You can buy fuel cleaner,witch You adding every few full tanks!

  5. #5
    Regular Member lizard's Avatar
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    I just took TB off and cleaned it out, I am on a farm in the middle of Devon at the mo so not got all tools with me, Used alloy wheel cleaner, empty ice cream tub and old paint brush from farmer. All back together now and all faults read and cleared, sorted, cheers for help but still confused why fault code was different to the lists I have...

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    Regular Member Sambor's Avatar
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    I have the same engin.Clean EGR valve,inlet manifold and TB properly.If You whant I can pop up several pictures showing how I did it.

  7. #7
    Regular Member simplesi's Avatar
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    Vehicle : 1.9 cdti 150

    Trim : elite


    Year : 2006

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    p1112 is the swirl valve stuck mate had mine replaced when had the same code also had the high pressure fuel pump and fuel regulator replaced HTH

  8. #8
    Regular Member lizard's Avatar
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    Thought it was all sorted but came on again on the way back from Devon today with same code, into dealer in the morning... Think is a faulty swirl motor same as last time.

  9. #9
    Regular Member gtr1000's Avatar
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    Vehicle : Insignia

    Trim : Sri

    Engine : 140 Ecoflex S/S

    Year : 2013

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    Quote Originally Posted by lizard View Post
    Got a EM light coming on all the time now with the above code,

    P1112 Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage

    ..
    Air temp is measured by the MAF sensor so MAF might just need a clean or replacing.

  10. #10
    Regular Member lizard's Avatar
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    Quote Originally Posted by gtr1000 View Post
    Air temp is measured by the MAF sensor so MAF might just need a clean or replacing.
    I agree with you there, but OpCom says swirl valve stuck, very confusing. can you point out the maf sensor if you can, cheers

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