Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
Came from another shop. Parts cannon was loaded heavy on this one. P0345. Cmp sensor a bank 2 code. Mitchell in says it should have over 10 volts coming from pcm. Backed probed pcm and 0 volts. Customer ordered Pcm from Ford. I installed and programmed and code came right back. Scoped both cmp sensors, good waves. Back probed pcm and the wave form is real noisy. Any suggestions where it may be coming from? I'm checking the alternator tomorrow for ac voltage. Any suggestions will be appreciated.
UPDATE...... Bank 2 is out of time. Always check basics. I had a good wave from on bank 2, but never checked correlation to bank one. Someone had changed the phasers and was off by a couple of teeth. Car has 91000 miles, owner is going to go ahead and do the chains and HO oil pump. Did remove the serpentine belt no change. I am not sure how to attach the wave forms, if I figure it out I will post them.