okay, i have a 95 camaro 3.4v6, the car starts up somewhat ok...idles smooth for the age. however when you give it some gas it sounds like it is choking and completely powerless. I have given it new plugs, wires, and egr valve. Im thinking i have a bad 02 sensor, cat has been off it for years and ran fine without it. 02 sensor is also before the cat area. Im gona have a video up tomorrow hopefully...btw 138k on it.