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yet another problem (BLB)

Discussion in 'Audi S4/A4/A4 Cab (B7 Chassis)' started by bez101, Jul 26, 2012.

  1. bez101
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    bez101 Yorkshire & Humber Rep.

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    right where to start.
    last week the car broke down wouldnt run etc needed a MAP sensor.
    fitted new sensor car starts and drove then went in to limp.
    wont rev wont drive chucks loads of black smoke out the back !
    iv also used a MAP sensor from a running car the still the same problem (NO CODES)
    BUT !! when we unplug the MAP the cars runs good apart from no boost
    theres no smoke etc etc and drives
    any ideas ??
    TIA
    #1
  2. murran
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    murran Active Member

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    has the little rotating flap in the egr valve fallen off??
    #2
  3. bez101
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    bez101 Yorkshire & Humber Rep.

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    Hmm well the lad thats sorting it rang me and said the egr was off
    and the rod has loads of play in it and rattles when you shake it
    and looks like the something is falling off
    so yes i think you are right ill know more tmoro when i go up
    #3

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