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Thread: Is my maf ******ed

  1. #1
    Regular Member Mattle40's Avatar
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    Default Is my maf ******ed

    05 1.8 Sri
    Low mpg
    Huge flat spot shifting up to second
    No noise change when I unplug it with the engine running

    Forgive me for asking again, I have asked this in other threads but just after as much insight as poss before shelling out £130

  2. #2
    Regular Member Mattle40's Avatar
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    Is Siemens the oem for the maf on a 1.8sri? I'm assuming so at £110

  3. #3
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    have you got any warning lights on the dash?

    from my experiences with maf failure albeit diesels... they have always thrown a fault code

  4. #4
    Regular Member PCMALT's Avatar
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    Vehicle : Signum V6 CDTI

    Trim : Custom lol

    Engine : Y30DT

    Year : 2005

    Mileage : 24000

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    Have you tested the signal wire from maf to ecu to see if it reaches 5v. whilst someone accelerates gradually in neutral test the signal wire with a multi meter can't remember what wire it is but there should be perminent live 5v ground and signal to ecu And poss from depends on what type yours is.

  5. #5
    Regular Member Mattle40's Avatar
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    No lights at all, I had another problem recently which threw up the eml, I changed the coil pack and plugs and the light hasn't come back.??
    I'm happy to buy a new maf but if it's not gonna fix the problem I'd rather spend 110 on sumat else lol

  6. #6
    Regular Member Mattle40's Avatar
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    Quote Originally Posted by PCMALT View Post
    Have you tested the signal wire from maf to ecu to see if it reaches 5v. whilst someone accelerates gradually in neutral test the signal wire with a multi meter can't remember what wire it is but there should be perminent live 5v ground and signal to ecu And poss from depends on what type yours is.
    Would this then be down to the lead or ecu? I dnt have the equipment to do this but interested to know

  7. #7
    Regular Member PCMALT's Avatar
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    Vehicle : Signum V6 CDTI

    Trim : Custom lol

    Engine : Y30DT

    Year : 2005

    Mileage : 24000

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    It just a way to test the maf sensor if its faulty by using a multi meter to check the signal voltage from the maf sensor to the ecu

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