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ECU is a suspect? 200 1989

posted by  someone claiming to be macs70GLT on  Wed May 30 08:28 CST 2018 [RELATED]

Art,

Thanks for the detailed explanation. My voltage measurements were key on measured between ECU connector pin 13 and ground - ECU disconnected.

Tonight I'll backprobe the ECU with connector attached & engine running. Definitely makes sense so that I'll see what's happening with the ECU as opposed to just checking the wires & ECT sensor.

Great graph!

I'll post results tonight.

Thanks

Mike






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