chickeneatman Posted September 25, 2020 Author Report Share Posted September 25, 2020 So one more issue, likely not related to the ECU at all. One of my coil packs is firing when I turn my key to On. This must be igniting some gas vapor in the cylinder and causes a backfire. This only happens after letting the car sit for an extended period of time. If it back fires I can then turn the key off, back on, nothing happens. I double checked all my coil plugs and they all seem to be wired correctly. I didn't detect any shorts anywhere. I am not sure which coil it is. The only thing I can think of is that the Ignition feedback line is unwired. However I can't imagine that would cause this. Any ideas? Quote Link to comment Share on other sites More sharing options...
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