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Old 05-28-2021, 07:04 PM   #5
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Join Date: May 2017
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easy thing would be to swap coil from cylinder 1 to anything on bank 2. clear the codes and see if it follows. If not then you know plugs & coils are good.

Next would be wiring.

Do you have a durametric? You could watch the number of misfires on each cylinder.

I would let it cool down overnight and then in the morning clear the codes, then start the engine. Does it run bad for the first 2-3 minutes or does it run good and then after 2-3 minutes run bad?
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