Schematic from Mitchell web site shows the coils activated from #14 fuse. There are symbols of a diode before the feed to the circuit after #14 fuse but I cannot find the location of the diode on the vehicle.
I checked the coils voltage with a volt meter with the key off and on same results. The coils only activate if I jumper 12 volts around the fuse.
Problem has been intermitent. Isuzu will run but next time will not start. Change ECM, Speed sensor, TPS, Oil pressure switch. I checked wiring continuity to ecm from each component thru the harness and all fuses, wire and regular continuity
Wednesday, November 26th, 2008 AT 7:15 AM