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Thread: MAF gone again!

  1. #1
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    Default MAF gone again!

    Hi chaps,

    was getting an EML last week, fault code P0100 (Mass airflow) although the car was driving fine.

    Connected up the Op-com earlier today and the sensor is reading zero airflow.

    I previously replaced the MAF sensor (January last year). Can't believe it's gone again.

    I've got a KN panel filter fitted, is this the cause of my repeated sensor failures, or did I just buy a poor quality replacement?

    I know KN guarantee that their filters don't damage the MAF, but I'm a bit unsure whether to trust that now I've had 2 go wrong...

  2. #2
    Regular Member Jaspa's Avatar
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    Vehicle : Vectra

    Trim : GSi

    Engine : Z32SE

    Year : 53

    Mileage : 57,000

    Default

    what engine do you have? it wont be the k&n ive got one fitted and never had problems with the MAF, sounds like a dodgy one

  3. #3
    Regular Member MrDerv's Avatar
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    Default

    The oil on the K&N's can damage the MAF if it's been heavily oiled after a clean

  4. #4
    Regular Member Critch's Avatar
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    Vehicle : Mk1 renault scenic... I know I know but it drives

    Trim : Basic

    Engine : 1.6 16v

    Year : 2003

    Default

    How much oil are you putting on when you clean the filter? As that could be the cause.

    Try some electric contact cleaner through the maf and see if it helps

  5. #5
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    Default

    I've only cleaned the filter once.

    I might have over-oiled (never done one before) but that was months ago and no problems until recently.

  6. #6
    Regular Member byebyeitsagsi's Avatar
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    Default

    I bought a k&n brand new and sealed in the bag, VXR was perfect fitted the k&n and it idled like a bag of spanners straight away. Took it back out and had to soak up the slightly moist and oiled intake pipe just before the MAF.

    Original panel filter in and back to perfect. Moral of the story is a standard filter is cheap and can be replaced regularly and does'nt cause problems an oiled panel filter CAN cause problems. To add to that the k&n i had fitted to all my cars before the vxr and it never made the slightest performance difference its all just a placebo effect.

    I would ditch the k&n and put a standard filter back in.

  7. #7
    Regular Member gtr1000's Avatar
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    Vehicle : Insignia

    Trim : Sri

    Engine : 140 Ecoflex S/S

    Year : 2013

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    Bosch for MAF sensors everytime .

  8. #8
    Regular Member Barlow's Avatar
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    Vehicle : Nissan 350Z GT


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    Default

    Quote Originally Posted by byebyeitsagsi View Post
    I bought a k&n brand new and sealed in the bag, VXR was perfect fitted the k&n and it idled like a bag of spanners straight away. Took it back out and had to soak up the slightly moist and oiled intake pipe just before the MAF.

    Original panel filter in and back to perfect. Moral of the story is a standard filter is cheap and can be replaced regularly and does'nt cause problems an oiled panel filter CAN cause problems. To add to that the k&n i had fitted to all my cars before the vxr and it never made the slightest performance difference its all just a placebo effect.

    I would ditch the k&n and put a standard filter back in.
    +1
    £6 standard filter will probably stop you having future problems.
    And for the alleged 2bhp (black & decker garden strimmer) increase, is it worth the hassle and expense?

  9. #9
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    Default

    You guys are right... Wish I'd not bothered now...

    It's been a while, but I'm going to write to K&N and ask for a refund...

    It's too much of a coincidence that I've lost two MAF sensors since the K&N was fitted

  10. #10
    Regular Member alcutler's Avatar
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    Vehicle : vectra c 1.9cdti 120 estate

    Trim : design



    Default

    Quote Originally Posted by byebyeitsagsi View Post
    I bought a k&n brand new and sealed in the bag, VXR was perfect fitted the k&n and it idled like a bag of spanners straight away. Took it back out and had to soak up the slightly moist and oiled intake pipe just before the MAF.

    Original panel filter in and back to perfect. Moral of the story is a standard filter is cheap and can be replaced regularly and does'nt cause problems an oiled panel filter CAN cause problems. To add to that the k&n i had fitted to all my cars before the vxr and it never made the slightest performance difference its all just a placebo effect.

    I would ditch the k&n and put a standard filter back in.
    Got to agree - keep it standard!

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