Had an issue late last night where my son's 86 started running horribly rough then it cut out, stumbled, sputtered and stalled. It fired again but would barely idle. Then as quickly as it did this it started running fine again.
The car has around 120K miles and as far a I know original ignition except plugs, wires, and cap.
Its running a VM1 ECU out of my 86. Grounds are all home run back to the battery. Fuel pump is new last spring as is rubber pump line and gas gauge pickup.
When it sputtered the tach also went well past 7K even though the motor was barely running.
Im about to scan it for codes. Based upon my past experience with my 86GT I suspect I'm going to see ignition pickup or ignition module.
Looking for a few other ideas so hopefully this repair doesn't take forever.
Im tempted to toss in a reman dizzy or get a new pickup and rebuild it myself then add a new ignition module and go from there.
Id use my 86 for parts to test with but it's running great and I don't feel like messing with that tortured old bullet under the hood of mine right now.
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