no spark, no fuel
09-25-2008, 02:17 PM
#1
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no spark, no fuel What could be wrong with my car?
I have over 40 psi at the schrader valve.
There is no spark anywhere in the ignition system, mind you with a noid light on the injector clip while cranking there is a weak/faint flash. So it is atleast getting the signal, just a very wek one.
Then talking fuel, while cranking with the fuel rail lifted, the injectors have a tiny mist coming from them.
I have replaced.......
new GM opti
new GM coil
new advanced auto ICM
I also went to GM and bought and returned the opti harness due to it not fixing it.
What else can I do?
FWIW, I pulled the opti off with everything connected and with the KOEO if I spun it you could hear the injectors spraying and the noid light would flash full bore.
What is that telling me?
I have over 40 psi at the schrader valve.
There is no spark anywhere in the ignition system, mind you with a noid light on the injector clip while cranking there is a weak/faint flash. So it is atleast getting the signal, just a very wek one.
Then talking fuel, while cranking with the fuel rail lifted, the injectors have a tiny mist coming from them.
I have replaced.......
new GM opti
new GM coil
new advanced auto ICM
I also went to GM and bought and returned the opti harness due to it not fixing it.
What else can I do?
FWIW, I pulled the opti off with everything connected and with the KOEO if I spun it you could hear the injectors spraying and the noid light would flash full bore.
What is that telling me?
09-25-2008, 05:14 PM
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Everything came back fine except for pin # b14 on the PCM there is no voltage there. So I jumped and ran my own wire from the PCM in place of that wire and nothing happened.