Audi 2003 no spark cylinders 456

Asked by Samuel Nov 17, 2020 at 07:03 PM about the 2002 Audi A4 3.0 quattro AWD

Question type: Maintenance & Repair

Mu audi a4 starts up but motor shakes I unplug the
cylinder 4-5-6 cable it still run but no power to
those cable what can that be?

1 Answer

35

Ok so first I need to know your engine layout. Are all those cylinders on one side or are they alternating. If you have a diagnostic tester check for codes. If not let me know and I will see what I can do. I think it is most likely a misfire in those cylinders. There are a lot of things that could cause this but the most likely is a clogged catalytic converter. I would check the Cat first and if that does not help let me know.

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