How do I troubleshoot a misfiring issue in my Audi 80?

My Audi 80 seems to be misfiring and I am not sure what the cause could be. I have already checked the spark plugs and they seem to be in good condition. What other steps can I take to diagnose and fix this issue?

Hello Sam, one common cause of misfiring in Audi 80s is a faulty ignition coil. You can test this by swapping the ignition coils with those from another cylinder. If the misfiring follows the coil, then it needs to be replaced.

Hi Sam, another possibility could be a clogged fuel injector. You can try using a fuel injector cleaner to see if it improves the misfiring.