Man i hope you can help me I have done all i know to do ! I am a mechanic by trade but I think with my truck I am over looking something simple ,I may have a job coming up god i hope ! Anyway this thing runs good till it warms up then # 1 and #2 cyl's stop hitting. I pull the wire off on the primary coil pack and have a good flame and bites like a beast! anyway I pull #1 injector wire and the same but #2 and it acts like it was hitting? pulling the plug wire does'nt change anything. If you pull the headlights on the R's drop to almost stall. I used to change out the temp sensor once a year for a fix. I have replaced . oh yeah i could tap on the main relay and it would idle rough so i rewire it out of the box seems ok now with a new one I have cleaned the maf sensor no change. it has new plugs wires timing belt module and ECM . oh yeah it has no cat our county doesn't inspect yet. This truck came from a used car lot just so you know what i bought myself lol. I noticed the voltage go way up when it started this? when i checked REf volt's at my sensors they were all good. somthing i need to know does the aux. shaft have to be timed anywhere when u put on a T-belt? I saw no where to put the mark on the housing? Or does the Cranksensor and module control fire and injector timing? Sir's please help me its the only way i have to go. Thanks john