ignition coil replacement didn't work?
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ignition coil replacement didn't work?
I have an 2010 Audi A4 and the check engine light came on and I noticed while driving that the car would backfire as if out of gas whenever Over 4000 rpm about a week ago and I the code came back as ignition coil #2 failing, so I went ahead and replaced all my coils and spark plugs with brand new ones and the light is still on and the engine will still backfire as if the new coils and plugs did nothing!
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