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P0421 and Ignition coil recall
Posted to Technical Theory Forum on 12/30/2010 5 Replies

2002 Audi A6, 3.0 Q 5spdA/T, Vin #. WAULT64BX2, 87,580 Mil. Cat. Warranty(8/8) end 12/31/2010.

Defective ignition coil caused P0421. Am I right? or. I would like to know about your thought between defective ignition coil to catalyst (P0421) because , only P0... Login to read more.

5 Replies Received (View Replies)