I just picked up a 1992 960. Fist problem pvc oil trap leaking installed new one, looked at the back of the block to see oil leak. transmission bad picked up one from the salvage . Looking to buy a good used engine 1995-1997 ,1992- 1994 engines you have to change the timing belt every 30,000 miles. This would mean I would have to change the timing belt once a year.The car keeps cutting of on me the mechanic tells me it's because the o2 senor is bad would this cause the problem? Changed air mass, and the speed senor no change.