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99 Posts
PCM came in today for anyone reading my posts,
Installed the new PCM, no luck.. Car is a fresh rebuild, hasn't started yet.. I tested the spark by removing one of the wires from a plug, grounding it and turning the engine over... No spark. Removed the fuel rail, turned it over, no fuel comes out.. Fuel pump kicks on, there is fuel pressure but no injector pulse. Pulled up the diagram on testing opti's from Shbox, went through it and there is a problem here..
With key on at opti harness
opti plugged in
A=Less then 1v
B=.037VAC
C=12vDC No continuity
D=.028
opti unplugged
A=5vdc
B=5vdc
C=12vdc
D=52.7 ohms :craz28:
According to the chart I should have .2 ohms on D with the opti unplugged, and with the opti plugged in it should be ALOT different... So that makes me think this is either a ground wire or opti issue (Have grounds connected to the stud at the coil checked, cleaned and double checked, ground connected down by starter for pcm, double checked).. Any thoughts?
Installed the new PCM, no luck.. Car is a fresh rebuild, hasn't started yet.. I tested the spark by removing one of the wires from a plug, grounding it and turning the engine over... No spark. Removed the fuel rail, turned it over, no fuel comes out.. Fuel pump kicks on, there is fuel pressure but no injector pulse. Pulled up the diagram on testing opti's from Shbox, went through it and there is a problem here..
With key on at opti harness
opti plugged in
A=Less then 1v
B=.037VAC
C=12vDC No continuity
D=.028
opti unplugged
A=5vdc
B=5vdc
C=12vdc
D=52.7 ohms :craz28:
According to the chart I should have .2 ohms on D with the opti unplugged, and with the opti plugged in it should be ALOT different... So that makes me think this is either a ground wire or opti issue (Have grounds connected to the stud at the coil checked, cleaned and double checked, ground connected down by starter for pcm, double checked).. Any thoughts?