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Thread: Jumpy Tachometer

  1. #1
    Join Date
    Aug 2008
    Location
    Connecticut, USA
    Posts
    5

    Jumpy Tachometer

    My tach needle just seems to bounce rather than give an accurate RPM reading. I don't think this is a cable drive. Sometimes after a little drive it returns to normal. Anyone had a similar problem? Thanks.

  2. #2
    Join Date
    Sep 2007
    Posts
    216
    Assuming the engine is steady and only the tach is affected, I would check the connector at the source of the signal, the distributor

  3. #3
    Join Date
    Aug 2008
    Location
    Connecticut, USA
    Posts
    5
    Thanks so much for the tip. I'll take a look there tonight, hopefully a loose connection and not some odd ECU malfunction.

  4. #4
    Join Date
    Oct 2009
    Location
    Calgary Alberta Canada
    Posts
    8
    I know this is an old thread, but I'll post this in case anyone else has this problem.

    99% of the time, a bouncing tach on any Honda is the ignitor. The most common fix for this is to clean the terminals at the connection and re-apply some dielectric grease to prevent corrosion and seal out moisture.

    In the case of the Beat it is not found in the distributor, it is mounted on the firewall.The Beat shares the same ignitor as the 88-91 Prelude, Part # - 30550-PH3-004

  5. #5
    Join Date
    Aug 2008
    Location
    Connecticut, USA
    Posts
    5
    Thanks for the helpful reply, also for the good part number.

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