Hey guys, I hate to bug ya'll but I'm clueless on this. Can someone point me to an electrical schematic on the LT1 engine? Thing is, my car doesn't start after taking it into the dealer for a cat replacement under emissions warranty ( not saying that they screwed me over). Opti and opti harness to PCM was replaced less than 1500 miles ago. VATS redone about 2000 miles ago. Coil replaced yesterday. No spark from coil. MSD looks ok...Was reading P0372, cleared it, and doesn't show a code now. It'll crank, but no love...Am however getting fuel..so that's a plus... I really appreciate the help guys. I'm sorry that my thoughts are jumbled. It's just that I'm slightly frustrated... P.S. Pulled apart the dash, all the wiring looks good.
Just checked the harnes going into the ICM. Looks good..will be replacing the ICM to see if that helps...

 

Check the ignition fuses under the hood.

 

Ignition fuses under hood and in car visually and test light checked out ok...

 

Replaced the ICM...didn't do a darn thing... it coughed once and gave up the ghost...Anyone???