i can not get my timing rite to save my life iv checked everthing cps is good all my marks are rite for TDC . today i adjusted my tps and still cant get it rite and still throwing code 51 iv checked tryed the hole one tooth back on installing the cps doesnt help iv checked my tru tdc and its good lines up with the crank mark and iv rewired my cps to fix my starting problem iv gone threw ever thread on this topic and leads me no ware what less can it be?