discusfa

My check engine light is on and #4 cylinder is misfired. The problem has bothered me since two months ago. I replaced all ignition coils and spark plugs and the car ran well for a week. Then, the cylinder misfired again. I replaced another set of ignition coils and the car ran well for another week, then cylinder misfired again.


What else could be wrong?

docurley

Check the spark plugs and make sure they are all gapped correctly.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o></o>

1991audi200

I know they make a wiring kit such as if u were going to replace spark plug wires but for the coil pack. ive seen these cause many coil packs to go out. look for these kits. or maybe even the impulse sender. also check ur compression. unless a timing belt broke or u ran it low on oil it should still be good.