well i m officialy pissed off.....i checked all sensors, i checked all spark plugs because we removed them too,i looked over the egr valve to see if i noticed nething wrong with it,and i made sure the o2 sensor on the headers was in.........idk what to do......... on wbstores site they said u might have to move the 02 sensor cause it is only reading 1 cylinder but i dont think that would give me these problems....after i checked everything i started it up and it was idaling rough and the lights were diming every few secs.....then after about 2 mins it started to run fine and then all of the sudden stalled out and after that when i started it back up it ran crappy again