rigidy

ive completed my engine install (2001 c5 z06, ls6) figured out all the wiring exept theres one fem 4 prong plug at rear of motor pass. side the wires are brown, tan, purple, blk. im pretty sure its causing a no start for me it cranks and fires but thats it. please help. thanx

76larkman

did you check your oxygen sensors? 4 square plug. but unplugged oxygen sensor wont keep it from running. Ask over pcm section. Get more response.