i have a 94 camaro and have had 3 opti failures in the last 2 months 1st was a reman so i bought a new gm opti both failed ive changed plug wires,ignition control mod , coil ,their is no sign of water or oil in opti wat else can cause this?

 

Have you checked your opti harness? A while ago, both with a diagnostic tool and at a shop that ran a diagnostic check on it, it showedthe computer giving power to the opti but not out no signal coming out.There's some prongs on the connector that were bent and not making contact. Easy fix, but it took a long time and money to find out the real problem. Hope this helps.