So I'm stumped for once...
I'm having an ignition issue on my 90 GT. It will run great...for weeks even. Then it will start losing tach and spark. I thought it was a wire break, but yesterday I pulled the harness and tested the ignition wiring for breaks, from before Y junction to ECU plugs. All wiring I tested was good.
I plug everything back in. Car won't start. I jostle and hold up the ECU harness and it starts just fine. I set wiring down, lose spark/tach and dies.
I've resoldered the pads for the input legs on the ECU, thinking that the solder joints were cracked...but that has not fixed the issue.
what am I missing here? When plugged in, the ECU harness connectors have quite a bit of movement, also they seemed fairly sturdy when I had everything apart.
Advice?
There's a 90 GT in the junkyard I'm going to go see if the ECU is still there...hopefully it is.
I'm having an ignition issue on my 90 GT. It will run great...for weeks even. Then it will start losing tach and spark. I thought it was a wire break, but yesterday I pulled the harness and tested the ignition wiring for breaks, from before Y junction to ECU plugs. All wiring I tested was good.
I plug everything back in. Car won't start. I jostle and hold up the ECU harness and it starts just fine. I set wiring down, lose spark/tach and dies.
I've resoldered the pads for the input legs on the ECU, thinking that the solder joints were cracked...but that has not fixed the issue.
what am I missing here? When plugged in, the ECU harness connectors have quite a bit of movement, also they seemed fairly sturdy when I had everything apart.
Advice?
There's a 90 GT in the junkyard I'm going to go see if the ECU is still there...hopefully it is.