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Engine rev-up on starting

f13ldy May 9, 2005

  1. f13ldy

    f13ldy New Member

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    Sometimes I will start my motor and the engine will rev up as if I had my foot on the gas. It only lasts a second or so, but it can be quite alarming.

    Its a PD130 TDI.

    Any idea what is going on?

    Cheers
     
  2. Masterm8fo

    Masterm8fo Warmonger

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    is this not the cold start mechanism ??
     
  3. MikeA3

    MikeA3 Active Member VCDS Map User

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    Hi,

    got the same engine, mine goes up a little - only to about 1500 revs though and then back to idle speed.

    how high does it rev then?

    Mike
     
  4. f13ldy

    f13ldy New Member

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    [ QUOTE ]
    Hi,

    got the same engine, mine goes up a little - only to about 1500 revs though and then back to idle speed.

    how high does it rev then?

    Mike

    [/ QUOTE ]
    It goes to about 3000. But it is quite intermittant (2-3 times a week) and the outside temp doesn't seem to have any bearing on when it does this.

    Cheers
    Carlos
     
  5. MikeA3

    MikeA3 Active Member VCDS Map User

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    To be honest i'm not sure, sounds very odd indeed!

    Might be worth posting this in the diesel forum as well, they can answer most questions about oil burners

    Mike
     
  6. jojo

    jojo Looking for Boost! Staff Member Moderator Team Daytona quattro Audi S3 Audi A6 Audi Avant Owner Group

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    [ QUOTE ]
    Sometimes I will start my motor and the engine will rev up as if I had my foot on the gas. It only lasts a second or so, but it can be quite alarming.

    Its a PD130 TDI.

    Any idea what is going on?

    Cheers

    [/ QUOTE ]

    My Passat Tdi PD does this occasionally, it only seems to happen when the engine is started up when its warmed up. I've had VW do a check up, and they can't find nothing wrong /ubbthreads/images/graemlins/noidea.gif
     
  7. Guest

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    shouldnt think its a problem tbh, could be any manner of things but nothing i can think of that would cause damage.
     

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