I have a 99 DOHC Motor with 167k. the car runs great 99% of the time....here is the problem! Sometimes it will just die for no reason. then you try to start it and it wont...and sometimes it will. The fuel pump and the plugs and wires have been replaced and still it does it. I bought a crankshaft Position sensor today and will put it in...does anyone have an idea what can be wrong? the repair shop cant find ANYTHING WRONG!