Testing coils
One way is to use an ohmmeter to measure the coils resistance. Never hurts to have a spare good coil on hand.
It is not recommended to switch with another cyl. If the coil is shorted it could have already ruined the PCM. If a good coil is not available , now you can wind up with 2 misfires instead of one.
Many times there may be a carbon track inside the coil boot, which if cleaned out could get rid of a misfire.
It is not recommended to switch with another cyl. If the coil is shorted it could have already ruined the PCM. If a good coil is not available , now you can wind up with 2 misfires instead of one.
Many times there may be a carbon track inside the coil boot, which if cleaned out could get rid of a misfire.
Last edited by hanky; Apr 11, 2026 at 09:23 AM.
Thread
Thread Starter
Forum
Replies
Last Post



