hello, I have a 87 gn that has been running rough. I decided to check the cam sensor after reading some posts on here. is the ring on top of sensor with the cut out section meant to be moved by hand? turned mine about 1/4 inch counter clockwise and returned it to position it was in. from what I read I am thinking this is not meant to move without the whole shaft moving? now car wont start, guess time to get new sensor and cam tool lol. also, the chip my car came with was extender, burned for a 200-208 cam. if I have to replace cam sensor, would this bet set the same way as a stock cam? any guidance appreciated. thanks