Quote:
Originally Posted by bluvan
Here is how I got the flashing codes for my 95 transplant. This is wired to an indicator light on the dash. The obd 1 cars send a series of light flashes to indicate faults.
Using the 1995 electrical schematics from the workshop manual traced the circuit from DME for the CEL. It is pin 21 on the DME to pin 8 on the “conversion” harness. My failure was not tracing enough to realize the DME throws a ground to turn on the light so you need to add a 12+ engine on wire to complete this circuit.
You can take it a step further and add the diagnostic plug with more splicing into the harness. The electrical schematics will help with that as well. I have all the parts to do that but once I got the flashing indicator to work I put the diagnostic plug project in the back burner.
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You must have. 993 motor. I don’t have a wiring diagram or even the original wiring from Timmons.