Suspect coil failure
Hi,
So.... wife took the a8 today (first mistake?) and when she returned it there was a noticeable misfire. The cat light is on and otherwise runs alright.
I suspect a failed coil - unburned mix then causing the lambda to go out of limit flagging the cat light.
I have vcds and will scan the car tomorrow.
Anybody know different or seen before?
1997 ABZ 4.2.
DM
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