Quote:
Originally Posted by Ronnie Hamlin
I'm not familiar withthe design of this engine but since it has coils packs, can you swap the ones that are firing with the ones that are not to see if the problem is failed coil packs?
It seems unlikely that two would fail at the same time. I'm not real big on throwing parts at a problem to try and fix it. A DVOM and a lab scope will show you a lot when working on electrical issues.
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Just FYI, each coil pack fires two cyl on this motor. 1 and 4 are paired as is 2 and three.