A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

slow random misfires in cyl. 3 and 5...

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Old 08-11-2005, 08:04 PM
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Default slow random misfires in cyl. 3 and 5...

PES'd 2.8 and just changed its oil. did plugs last oil change, ~4,750 miles ago. plugs were perfectly clean.

ran an auto-scan on the car to clear another code and saw random misfire in there. so i ran a measuring block and cyl. 3 and 5 are slowly, slowly counting up. moreso 5 than 3. i figure i'll just swap the plugs...

any other ideas? saturday and sunday is a track event so i'd like to know what the culprit is...
Old 08-11-2005, 08:21 PM
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are the plugs gapped correctly? how old are the wires?
Old 08-12-2005, 04:18 AM
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Default Are 3 and 5 on the same coil? If so, that's probably the issue...

OR, check your wires...
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