Fuller30 Posted September 17, 2020 Share Posted September 17, 2020 hi, i have a audi a4 2.0t quattro sline on a 59 plate I was driving today and the car started to miss fire and my code reader said p304 cylinder 4miss fire.any idea what is causing this. Car is back running fine at min but I didn't do anyone to solve the problem Quote Link to comment Share on other sites More sharing options...
Steve Q Posted September 18, 2020 Share Posted September 18, 2020 I'd be looking at inspecting the coils, sparkplugs first and then injectors. Quote Link to comment Share on other sites More sharing options...
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