Quote:
Originally Posted by GOLDCYLON
My money is on the quad drivers which control the injectors. In MY92 these became part of the ECM and chip circuity. We are however talking about Johnny's MY 90. Johnny swap your drivers (They are identical) then tell us which side is firing incorrectly after the swap
I sent you a PM as well. GC
|
Mine is a '90, and I wuz thinking about them too (I assume we're both talking about the two quad relay modules?). But, looking at the schematic in the FSM, the primary injector current does not pass through them; only the secondaries (two quads = 8). Based on what I've read has been done - not actually being there - the ECM is floating to the top of the suspect list for me too. (Note the cautious tenor, as I (we all) have been wrong once or twice when it comes to
'lectrik chit!)
I seem to recall there are at least two schematics in the FSM touching on the ECM, DIS, and injectors... I'll keep looking, but my money is on the ECM (at the moment).
Thinking out loud, I know Marc Haibeck provides ECM service (sends them out, if I recall), so if it is the ECM, then there is a solution to that problem.
I tell ya...dealing with GM to get information on repair parts - or even just spec sheets - is a real PIA. I'm just sayin...
P.