CQ tacho not working

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  • 802audi
    S2Forum Hobbyist
    • Jun 2012
    • 19
    • Country: United States

    #1

    CQ tacho not working

    So the tach in my 1990 coupe quattro hasn't been working since i bought the car last year and im not sure whats wrong with it. It is stuck at about 1200rpm when im just cruising around and when its off. But if i get the engine revving up high, then it jumps up to about 23-2600rpm and stops there. Then once i slow back down it drops very slowly down to 1200 again.

    any suggestions?
  • 802audi
    S2Forum Hobbyist
    • Jun 2012
    • 19
    • Country: United States

    #2
    Its like it knows i am revving the engine but it won't move, until i get going. Even when im way past 2300rpm, it wont move past there.

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    • Sleeper_Avant
      S2Forum Fiend
      • Mar 2009
      • 2372
      • Country: England

      #3
      id say its the tacho itself, swop in a set from a known car just to verify
      1993 URS4 Avant Emerald Green 350+bhp
      1991 Ford Sierra Sapphire 4x4 in Magenta
      BoooOOOSSSSSTTTT BANG BANG CHIRP CHIRP

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