i vote icm, i had a similar issue and it was my icm, went through 2 of them

 

already tried that

 

check the fuses as well, injector fuses, pcm, icm....

 

i might have some time this week to come look at it, im on vacation this week.

jay

 

Jay if you can let me know what might work my schedule is goofy this week but i'll find a way to make something work and will surely pay you for your time

 

could the opti have smoked the coil?

 

Could have a history code but you won't find it at AZ

Don't need the MAF. Without it, the PCM goes into speed density mode and should start any way.

Opti won't take out the coil permanently.

So do we assume you checked spark at least at 4 plugs at the 4 corners of the engine?

If you indeed have spark at ALL the plugs and they are ALL wet. The next thing I would do is a compression check or at least pull a valve cover.

 

thanks speedy I did check 2 diferent plugs but will go with your sugestion and check corners. is it possible its flooded to a point were sitting won't clear it? I did pull all the plugs on the drivers bank they were a bit wet. I cleaned them with parts cleaner and it seemed no closer to starting

 

it sat for a couple of days and I just went and cranked it and it seemed like it wanted to start the first couple of cranks then nothing

 

Have you put a fuel pressure gauge on it to make sure you actually have fuel pressure and you're not just spewing fuel into the intake through the regulator? I've had one go bad that acted real similar.

Only other thing that comes close in my experience would be a bad opti. I have had one go out and throw zero codes. Even took the car to a professional shop who had to call in a GM tech to figure out that the opti was bad. They even paid for the tech because they couldn't figure it out.

 

Its happened to me before in the middle of the desert in an old truck of mine! Not good at all....

 

40 lbs at the schrader valve

 

The screws for the rotor came loose on my opti and I still had spark, it had us stumped for days, it also backfired through the intake.

 

You should do a compression test.

 

plenty of compression, pulled all the plugs dried them, aired the cylinders, the plugs were black 500 miles on them. I guess its opti time.