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Update, after overhauling the heads, adjustable fuel pressure regulator and new MSD opti-spark it turn out to be the computer. I sent it to 4 places and finally the last said it was fried. Well after finding out it was impossible to find one I asked the last place what to do and they gave me the...

Was driving down the road when my 921 just quit on me. I smelt a little fuel . After about 20 minutes it started back up, I drove for about 3 minutes then stalled again. After 20 minutes it started again, but was almost home. I got a block away from home and it started to bog down again so I...

Yes I did and didn't help. What it was , was the IAC valve that I just installed in it was bad. My bad, it was a $15 part so replaced with one that was $90. Just goes to show you, don't by cheap parts. Still runs a little rough but just won an auction for a snap-on 2500 scanner so will finally...

Well I got it started but real high idle so did some spraying with starter fluid and think the intake is leaking, That was something I replaced during this whole thing and think I nay have screwed up the back sealant by trying to lay it down by myself, Anything else it might be? It also runs...

Well i tested at the fuel pump and have 44# but nothing showing at the Schrader valve, would the regulator do that?

Yeah I know I'll check that tomorrow. Yeah I replaced fuel pump and no gas out of FPR, heard it could be the relay

Well got it started, it was a f**king loose connector for the ignition control module, But anyway now I can only get it to run with starter fluid then it dies after about 45 seconds to a minute then it just dies. But thank you everyone for your help, but it just had to be something stupid like...

Please help!!!!!!!!

I replace connectors on grounds down on the block and on bell housing and still no spark. I don't know what to do. Could it be the computer?

This is a recap of my posting on another site {Thanks to everyone that help but still no start, so let me recap events(2 corvette was running but poorly so I decide to replace optispark with one from Cardone. At the same time I decide to replace intake, timing cover, oil pan and valve cover...

Could on of the sensors cause a no spark?

I tested with A VOM with ohms.

I did with a volt meter. Thank you, I hit a wall on this

Hey gmjunkie, I was told your the man to go to. Wondering if you have time to take a look at my post, it's under 92 corvette help forum. Thank you for taking a look before I take bullet in the head:r

Thank you, this has been going on over a month now and was just a two day project.

OK, I followed the FSM Chart C-4 Opti-spark ignition systems check. No spark coil driver connector pins A and D 11,6 dcv, coil driver connector B 4-7 ACV while cranking, coil driver connector C good ground, So according to FSM faulty coil driver connector bad or faulty coil driver. It has a new...

Here is up date. After installing fuel pump and a day after getting that backfire out of intake, I stopped getting spark. Bought a AIP opti sill no spark. So someone suggested that it might be the ICM, so I replaces ICM and STILL NO SPARK. WTF. I'm lost guys as to where to turn next, This three...

I brought it to TDC right after intake closed and adjusted the as shop manual says but back then all the way out till whole rocker wiggled then tighten till no up and down movement then 1/2 turn. Took opti apart to see if I put together right now no spark anywhere. fuel pressure at 40# key on...

Put fuel pump in and when I went to try to start it it seemed to try to start then I got a back fire from the intake. So it must be some kind of timing problem. Now remember I transferred everything from the new opti to the old base because it wasn't fitting right, I was real careful to put it...

I check the fuel pressure and only getting less than 20#. Would that make it a no start