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Misfire on cylinder 4

This is a discussion on Misfire on cylinder 4 within the Computer and Fuel Systems forum, part of the Audi Reviews category; My car just started running very rough last night. I checked the trouble code and I it is showing a ...

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Old 04-20-2008, 04:44 AM
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Default Misfire on cylinder 4

My car just started running very rough last night. I checked the trouble code and I it is showing a cylinder 4 misfire (P0304 I believe). I tried swapping the plug and coil pack with cylinder 1 and I have also checked the Ignition Control Module out, no change. Should my next step be checking/changing the fuel injector? If so, are there any good how to guides you all know about for replacing those? Any help is greatly appreciated.

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