shouldn't be the opti
 

I have a 97 lt1 in a chevelle. Here is what I have replaced recently....opti, cap and rotor, coil, crank sensor, opti pigtail, plugs and wires, and ECM with a tune. The opti may have 30 minutes on it. The car will not start and if it does it will only turn over and rev up just for a second or two. It was giving code P0336 and P1371. Any suggestions would be greatly appreciated. I keep nickle and diming myself to death. Haven't got to drive it sinc May!!!

what brand of opti?

could be a fuel problem.. regulator or clogged ext.. im not sure just suggesting.lol

it is a remanufactured opti. This is the second one this summer. I started having some problems so I put a new opti in it. Still was having the same problems so I switched the opti again. Still not working right. I have now changed the crack sensor, ECM, and opti pigtail. Before the last opti change the car would go about 4 miles and just die. Had to wait just a minute or two and it would start back and go about a mile then die again

whats the condition of the electrical connector for the opti.