04 maxima 3.5 ...sets p0345 hard, car in limp mode,sensors replaced with oe

What is your question?

Circuits test good only diff between cmp1 and cmp2 is while running cmp 2 has a square wave that peaks at over 13v while one is just above 12 both circuits have the same voltage and ground. signal wire at bank 2 I cut and sensor still makes a 13 v square .. any thoughts would be greatly appreciated ty. Ps.it also had/has p0726-p0550-p1564....Symptoms long crank . no shift mil.on.