Why My New ICM causing misfires?
July 5th, 2018, 12:08 PM
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Why My New ICM causing misfires?
Trying to resolve the dreaded P0300 code on my 06 Cobalt 2.2 Ecotec. Installed a new ICM and its causing misfires from start. Second time i tried to replece it and each time i go back to old ICM which only misfires when hot. Mostly in Summer heat. Is something not communicating with ICM?
