Camshaft Positioning Sensor. I'll bet my last dollar on it. I had a Nissan Altima once upon a time. When any electrical component started to go or was changed with a non OEM part (specifically sensors), this would throw the entire car out of whack.
The cam shaft sensors specifically, were among the worst to diagnose. I went about 10 months at one point where to the car would go into a fail safe mode, throwing no codes but traction control and wouldnt move. There was no take off to it at all.
Lesson Learned for me; don't cheap out on electrical components.