Question about 2001 Audi A4
Code P0301 is a cylinder #1 engine missfire detected code. Cylinder #1 is the one closest to the front of the engine or where the drive belts are. See what the spark plug looks like. May just need to replace if they have not been done since car was new.
Posted on May 25, 2011
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Posted on Jan 02, 2017
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