Can any one tell me what the cam and crank angle sensor signals look like. I have attached a scope to trace the signals of my Micra K12 1.2S. The crank signal (yellow) shows a square wave and I presume is correct , the cam signal (blue) does not look right to me, I would have thought this would also be a square wave, due to the fact they are both hall effect sensors.
The problem I have is that when the car is cold it will stall and flag a cam sensor fault. If the car is warmed up all seems to be fine.[ATTACH=full]41466[/ATTACH]
