Code :P0306,EPC. Check engine light on

2008 AUDI A6
125,000 MILES • 2.4L • V6 • 2WD • AUTOMATIC
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Check engine light is on and the spark plug in sixth cylinder is wet. when EPC faults appeare and Engine is fluctiating. Code: P0306.
Aug 4, 2016 at 3:57 AM
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WRENCHTECH
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  • 20,760 POSTS
I would first check the compression on that cylinder to make sure the problem is not mechanical. If compression is good, I would suspect a problem with the plug or bad coil.
Aug 4, 2016 at 5:00 AM
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