I'm struggling to solve this issue I'm having with my 2010 armada. its throwing the p0850 park neutral circuit code. cranks in park or neutral but usually won't start right away. sometimes it cranks and starts the first try but usually only starts after a few trys. normally this code means the cars pcm is not registering that the car is in park/neutral. so I know its likely not that the sensor is broken. I have had the dealership look at it a few times, they weren't any help. had a couple of mechanics look at it still no answers. unfortunately I have yet to see a haynes repair book for this car or been able to find the part itself in the retail auto parts stores. (o'rielys autozone ect.) nor have I had any luck finding information on the net either. any help or advice would be helpful and greatly appreciated.