2002 Audi A6 car is shaken bad, reading cylinder 2 misfire

2002 AUDI A6
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NICK80
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2002 Audi A6 6 cyl All Wheel Drive Automatic

car begin shaken and check engine light came on, took it to local place and had placed on computer. reading a cylinder 2 misfire detected, what the possible problems be. spark plug was switched still reading and acting same. friend said it was the coil pack but no way to be sure. wanna ball park idea before i take it to mechanic. car is very expensive to fix and dont wanna be mislead by mechanic
Mar 18, 2009 at 5:20 PM
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RASMATAZ
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P0302 Misfire should prompt you to check sparkplug/compression/injector for that cylinder.

Misfires can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.
Mar 18, 2009 at 6:35 PM
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MINHNGUY
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After all the tests you have tried but still the same, then you should check the power transistors. That cost around 200 bucks.
Sep 11, 2011 at 5:31 AM
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