hey like the title says i just swapped in a k20z3 and its running on 3 cylinders has a code for the o2 sensors (don't have any at the moment) and a code for the crank shaft position sensor would that cause it to run on 3 cylinders? i haven't had to much time to look into the problem because i have been working but if anyone has any tips or ideas please let me know !! THANKS IN ADVANCE!!!!