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Vehicle Speed sensor problems.

Discussion in 'A3/S3 Forum (8L Chassis)' started by flatshifter, Jan 2, 2010.

  1. flatshifter

    flatshifter Member

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    Hi Guys,

    I have a 2001 Audi A3 1.8T FWD 8L and the speedo went dead. I got it hooked up on an OBD scan tool(no access to a VAG-Com at the moment) and it says "implausible signal".

    I purchased a new unit from ECS tuning and fitted them myself. I was surprised to find out the speedometer's still not functioning. Error code remains the same.

    Any clues to this problem?

    Cheers.


    Danny.
     
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  3. djdougalno1

    djdougalno1 Member

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    was it the impulse sensor you changed in the gearbox
     
  4. flatshifter

    flatshifter Member

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    Yes, this one.
    [​IMG]
     
  5. jojo

    jojo Looking for Boost!
    Staff Member Moderator quattro Audi S3

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    Don't you have the long bit which goes on the end of it like my S3 one?(excuse the poor quality of pic)

    [​IMG]
     
  6. djdougalno1

    djdougalno1 Member

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    jojo i think hes got the right one the short stubby one is for 5 speed fwd gearbox and the longer one is for the quattro gearbox 5 and 6 speed and
     
  7. jojo

    jojo Looking for Boost!
    Staff Member Moderator quattro Audi S3

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    I see, learn something everyday. :icon_thumright:
     
  8. flatshifter

    flatshifter Member

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    Its an 02J 5 speed gearbox, where the 6 speed is an 02M. It'd be great if someone could assist me on this.


    Cheers.
     
  9. mark_sarah

    mark_sarah Limp mode!

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    I had similar problem.
    I decided after wasting my money on numerous road speed sensors, and a replacement cluster, it must be a wiring issue.
    I booked a week off work with the intention of removing my loom, and testiing. Cutting a long winded story short, i found a part of the loom that had worn through. When i investigated further 2 wires had worn through and were touching.
    After i cut, re-joined, heat shrinked, and re-fittted the loom, i got to test it to find my speedo was now working, the fuel gauge was no longer irratic, and the sub now works.
    Hope this is a help to somebody, if you want more info please message me.
     

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