Audi A4 Misfire. One occasional issue that customers have reported with the Audi is engine misfiring. Engine misfiring can be a symptom of a problem with one of the various parts of the ignition system.
2002 audi a4 18 Are plugs read more. Usually when engine misfiring occurs and the problem is traced back to the ignition system typically spark plugs are the culprit. On May 03 2017 2012 audi a4 quatro cylinder 2 misfires replaced cylinder 2 coil replaced all spark plugs 2nd cylinder fuel injector cleaned carbon off the valves replaced oil separator assembly compression test reveals cylinder 2 at 130 vs 1 3 and 4 at 170 misfires at idle only Please help My car has 71500 miles.
P0302 AUDI Description When a misfire occurs engine speed will fluctuate.
Took car to Audi for engine light they found misfires on cylinders 4 5 and 6. A MIL may be on with P0300 andor P0301 P0302 P0303 P0304 cylinder misfire detected along with a rough idle. While there are a variety of reasons your Audi A4 Quattro has a rough idle the most common 3 are a vacuum leak an issue with the spark plugs or a problem with the ignition coil. The sparking of the gas mixture fuel and air is the combustion.