se-r spec crankshaft sensor

hey, i bought an 04 spec v sentra with 36,000 miles back in may. since then, my CRANKSHAFT POSITIONING SENSOR has caused my service engine soon light to appear 3 times now. whats going on with that? i have replaced it twice now and i need to do it again. anyone know why it keeps failing?

anyone got any suggestions?

so the reason my sensor when out was i was cruising at 120mph for about 5 minutes. then couple minutes after that my check engine light was on. then last night i was driving in the snow and accidently stalled my car. started her back up and the light hasnt come on since. do i still need to replace the camshaft positioning sensor? It will be my 3rd time replacing the sensor in
8 months

those should be replaced in pairs, if youve done the crank sensor do the cam and clear the codes..... i think the scaling is slightly different between the plastic and metal ones, mine wouldnt even crank with one metal and one plastic