LT1-LT4 Modifications 1993-97 Gen II Small Block V8

no spark, no fuel

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Old Sep 25, 2008 | 02:17 PM
  #1  
camzaro28's Avatar
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Default 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?
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Old Sep 25, 2008 | 03:01 PM
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Run through this it should get you figured out.

http://www.mainstreamtopics.com/foru...p?showtopic=78
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Old Sep 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.
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