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Thread: revs reading too high?

  1. 25th August 2010, 09:07 PM #1
    tickboom81 Guest

    revs reading too high?

    hi guys does anyone know why my revs are reading 1000rpm above what it should? gauge seems okay? connections? (94 disco)
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  2. 26th August 2010, 03:56 AM #2
    German Grüner's Avatar
    German Grüner
    German Grüner is offline Master
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    1994 TDI Discos were equipped with a 63mm alternator pulley.
    May be yours is now equiped with a new alternator with a 50mm pulley as is standard in 1996-1999 TDI's

    Regards
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  3. 26th August 2010, 05:42 PM #3
    tickboom81 Guest

    ???

    hi cheers for your comment but mine is a 3.9l petrol, it was working fine and then just changed, so upon engine idle it's around 1700-1800rpm. I haven't done any work to the alternator either.
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  4. 27th August 2010, 09:18 PM #4
    95disco1's Avatar
    95disco1
    95disco1 is offline Fossicker
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    Sound like it could be the Air Flow Meter.
    We had a car in the work shop today with a similar problem and we found out it was the Air Flow Meter.
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