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1.8T Exhaust system??!

Discussion in 'A4/S4 forum(B5 Chassis)' started by imported_smoke, Apr 25, 2005.

  1. Hi guys, right after getting my car running just how I wanted, the exhaust falls apart. It's come apart at the joint between the down pipe and the centre. Now I'm thinking maybe go for a straight through?! can I remove the Cat and oxy sensor or will that confuse the ECU? what are my options?

    Advise is much appreciated!

    Matt
     
  2. Markey

    Markey Active Member

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    Not sure how that will work as my one of the 2 oxy sensors failed on my Cat and every now and then the car would stall now its been changed it holds the revs better at stand still as well.
     
  3. AndyC

    AndyC Moderator
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    you need the primary O2 sensor, control idle fueling (closed loop)

    the 2nd one just measures the CAT and sees if its still working for new legistlation.

    we have a new gadget that replicates the correct signal so the ecu thinks the cats working fine.

    Andy
     
  4. Danielson

    Danielson Member

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    andy c it seems u are the man for the b5 a4. i may have to visit you soon. /ubbthreads/images/graemlins/beerchug.gif
     
  5. AndyC

    AndyC Moderator
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    look forward to meeting you.
     
  6. Markey

    Markey Active Member

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    You got a website Andy?
     
  7. AndyC

    AndyC Moderator
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    yes, under constrcution though

    Andy
     

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