Thanks for info. It started out ignition coil on cylinder 1 so I switched it with number 4 didn’t fix. Can unplug coil on 1 and 4 while running no difference in engine. So today I take number 4 coil out of cylinder plugged it in held a grounded wire next to it to see if firing no fire. So I plug same coil in to number 5 plug did same thing it’s firing(coil working). Now when I unplug cylinder 1 and 4 and 5 while engine running no difference. So my question is, even though I saw coil working do you think that coil could be bad causing it burn my computer each time? Same coil on all 3 cylinder has caused them to quit working. Thinking about sending computer out tomorrow to have checked.
Thursday, January 30th, 2020 AT 4:56 PM