Well first off i would like to state that im an idiot. In an attempt to find my clacking noise I pulled off my VCs to make sure nothing was broken or loose, I figured while the VCs were off i might as well make sure that the rockers were torqued down. I didnt know that i was supposed to torque them when the cylinder is a top dead center. So i put everything back on and i snapped a small vacuum line that connects to a nipple on the EGR. So i started the car up and right when i started it up i heard a clapping noise that stopped right away. Then it ran just like it did that morning, then i drove down the street and it actually felt a lil better then it was before. But it did throw the Check Engine light, but i dont know if thats from the rockers or from the snapped vacuum line. Could the rockers throw the CE light? Could i really mess up my valves and rockers bad from over or under torqueing the bolts?