Redwing1980

All,

I've got a 2008 Q7, 4.2L, S-line with 98,000 miles. I recently got the yellow engine light flash; followed by permanent engine light remaining on. I ran VCDS and found that cylinder #3 had an intermittent misfire. I replaced all the ignition coils and spark plugs; engine sounded smooth. Unfortunately, didn't solve the issue. I still have the #3 cylinder intermittent misfire.

Fuel injectors? Buildup?

I'd also appreciate any thoughts on fuel injection cleaners, etc.

I appreciate everyone's help/direction/thoughts.

Thanks

- John from Houston

Redwing1980

Here's the code:




This was after I replaced with new coils and spark plugs.

Santiago416