I have a 94 Z28 with the LT1 and T56. My car will run for about 20 mins before it seems to flood out and die. This issue happens whether its idling in the drive or running down the road. I tested my old cts after replacing it and had acceptable readings and 5.01 v across the plug. The wires from the cts to the ecm are solid and all 3 grounds for the ecm are good. Any one have and other thoughts?

 

ok so after removing my opti and cleaning the contacts the car has stoppped running hot and cuttin off....problem solved it seems