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Thread: T4 ACV 2.5 TDI injector pump errors

  1. #31
    Join Date
    Dec 2008
    Location
    Sydney/Canberra
    Posts
    5,523
    Users Country Flag

    Yeah, this one I've recently finished repaired snapped the cam belt, and the injector pump belt wasn't too far behind. Was badly cracked on both sides, and was starting to shed a few teeth.
    '07 Transporter 1.9 TDI
    '01 Beetle 2.0

  2. #32
    Join Date
    May 2008
    Location
    byron
    Posts
    41
    Thread Starter
    Got a version of Vag-Com working & it says timing is around 1 degree BTDC. Less at revs. Is that sufficient to warrant doing the timing?

  3. #33
    Join Date
    May 2006
    Location
    Adelaide South Australia
    Posts
    1,295

    To check the timing you need to go to the timing graph.
    Very roughly, go to 01 Engine.
    Measuring Blocks 08
    Group 000
    Click Go
    Switch to basic settings [TDI Timing will appear]
    Click on TDI Timing
    A graph should now appear telling you whether the timing is too far advanced, or retarded or spot on.
    Coolant temp must be 85C or above to show timing. This can take a while at this time of the year to bring
    back to temp after any adjustment. Raise revs above idling to around 2000 revs.
    To read temp, move to 02 & click GO. Coolant temp. will appear on RHS.
    Before you can go into timing graph again, you need to go back to page where VIN appears [01-Engine]
    Let us know how you get on.
    Understand how it works, troubleshoot logically BEFORE replacing parts.
    2001 T4 TRAKKA Syncro 2.5TDI,2006 Mk5 2.0TDI Golf manual,2001 Polo 1.4 16V manual [now sold], '09 2.0CR TDI Tiguan manual,
    Numerous Mk1 Golf diesels

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