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2.5 V6 TDI Strange issue after cambelt change

wesmaster May 29, 2013

  1. wesmaster

    wesmaster Member

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    Hi, this is a strange one, A6 allroad auto in for cambelt/wpump/thermostat, all goes ok. Car comes backwith following fault: every now and again ABS ans Traction light oh and air suspension fault. Cant work it out.... vcds says check faults on other ecus, injection is slightly advanced, I knew that, did throw a code. Turns out that because the inj timing was 3 degrees too advanced the engine ecu put faults in 3 other ecus and put into limp mode. Set inj timing to perfect and runs like a dream.
     
    Last edited: May 29, 2013
  2. adamss24

    adamss24 Well-Known Member

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    I think you will find the fault will re-occur shortly ! If the timing is within spec then the car is ok, i suspect faulty N75, dirty fuel filter or a combination of all 3 above...
     
  3. wesmaster

    wesmaster Member

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    Cheers Chris, spoke with him today, said it is running well. fingers crossed.
     
  4. adamss24

    adamss24 Well-Known Member

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    Has he taken it to high speeds on motorway ? That's when it really happening....
     

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