Well as you may have read on another thread, I've been having some trouble figuring out why my 95 Rivi has this awful lean misfire condition when the darned thing is warmed up. Anywho, after checking and rechecking all of the relevant possible causes i.e. sensor, egr, IAC and other components, I decided to take another route.
So, I ripped into the wiring harness and found the AC clutch and the O2 Sensor appear to share the same ground circuit. Also, neither one are getting continuity to ground. Does anyone know if the AC clutch and the O2 sensors are command grounded through the ECM or are they chassis/engine grounded?
I don't have wiring diagrams accessible at this time. I hope I'm not rehashing any other postings where this problem has been encountered.
BTW I do believe my ignition switch is intermittent. With my battery fully charged, I get a relay buzz of some kind under the dash, when it won't start. It usually cranks on the second try.