munyonb10

its 00.6 ac volts my bad

PDEM87

I've found out it's possible to have a cps pass the "ac" test but still not work 100%

cruiser54

That's interesting. I've always found the AC voltage test to be completely reliable as that is exactly what the ECU is looking for. The ohms test on the other hand is very unreliable.

munyonb10

Right now it's testing good on both ohms and AC volts

PDEM87

I believe the ecm looks for crankshaft speed (cps) and sync signal (not manditory)to begin injector sequence unless wide open throttle is detected. Tell me your not mashing the gas when trying to start thus possibly shutting injector pulse off.

munyonb10

no i dont hold the gas wide open lol

PDEM87

Another possibility comes to mind. The ecm looks for 300 rpms (cps) before starting the injector squence. Does you motor crank somewhat slow?

munyonb10

the motors cranks good the weird part is it will start and run and drive fine but if you shut it off it wont start back until after it sits a while and when it wont start its because the injectors arent pulsing

munyonb10

well i think ive finally figured it out i took the computer out and took it apart and looked at it and one corner of it was corroded pretty bad so im gonna buy a new computer and put in it

cruiser54

Get one from a 90 at the junkyard.

munyonb10

is a 90 better than the other years?

cruiser54

Better than 88 for sure. Slightly better than 89. Don't go backwards and get an 87 or 88 for sure.

munyonb10

well i got the computer in it and it starts and runs perfectly now but on the way home from the store the idler pully broke and threw the bearing through the radiator

cruiser54

Sorry to hear that. CRAP!!!

PDEM87

Double CRAP!!