Scottydoggs
Killa Bee
if you have car ramps, get it up in the air and let it cool off, then with the palm of your hand hit the cat hard, listen for stuff rattling around in side it.
im voting cat, but honestly i still havent seen you post anything of you changing the plugs, wires, fuel filter, cleaning injectors, ect. Those would be the first things ide be doing concidering they are the cheapest compared to a 100-200 $ maf you got that wasnt even the issue when you could of just unplugged the thing to test that and not wasted the money. Just and fyi if you ask questions and people answer try listening to them and not replacing pointless expensive parts.
Also cats are for hippies
Im having the same problem he is, ive replaced plugs and wires, LIM and UIM gaskets, cleaned injectors, new injector o rings, TB gaskets, valve cover gaskets, im not throwing and engines codes either..ill check if it is cat