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Thread: TD5: Cleaning MAF Inlet Gauze of talc-like dust

  1. 22nd January 2016, 11:48 AM #11
    Jazzman
    Jazzman is offline Wizard Silver Subscriber
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    Quote Originally Posted by akula View Post
    Does Nanocom airflow reading of 4.4 after shutdown mean the MAF is busted?

    Weirdly, airflow seems right at idle and 4000rpm.

    Anyone else had this happen?
    Normally the answer would be yes. Mine read the same when it failed. You can try disconnecting the MAF and going for a drive, if you get better throttle response (after the ECU detects it has been disconnected, normally 3 surges) than there is a good chance it is buggered.
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  2. 22nd January 2016, 03:46 PM #12
    discorevy
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    the large O ring sits inside the airbox lid in a recess and doesnt usually come out with the maf.
    it is normal for the reading on nanocom to show 4.4 after shutdown and as i said before the problem is if it reads 4.4 when the engine is running, op has stated it reads normal at idle and at 4000 rpm.
    I have 6 td5 discoverys here at the moment and can guarantee they will all be the same, oh and 1 tdv6 in for a turbo , what long weekend
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  3. 22nd January 2016, 07:56 PM #13
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    akula
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    Quote Originally Posted by Roverlord off road spares View Post
    Did you know there is supposed to be an large O ring on the MAF inlet to Filter box? not on your picture. There are many Disco 2s driving around with out it, lost over the years, so there is no seal into the filter housing.
    Regards,
    Mario
    There was one thick black o-ring on the airbox side on mine IIRC. I recall looking at it and wondering if it was still making a good seal.
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  4. 22nd January 2016, 08:03 PM #14
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    akula
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    Perhaps coincidentally since cleaning the MAF my engine and water temps (via Engine Saver & Nanocom respectively) are up ~2-4c
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