ok i just did a headgasket plus timing belt water pump etc. but when i went to take off the harmonic balancer i knocked it off of TDC but while i had the head off i tried to alight the block and head for TDC. got everything back together went to start it it starts then dies.......then i got a code for p0335. took the bottom timing belt cover off cleaned the sensor. put it all back together except the belt for the alternator, ps, and ac compressor. went to start same thing.....so my thoughts are am i off a tooth or two on the timing? for the TDC sensor throwing it off that its not at TDC? any help? would be awesome