Hey i have a problem about 2 months ago or so i got my CEL with the camsaft pos. sensor and the ref one also. Well the car ran fine so i reset my ECM and everythin was fine until last night when i come into my car after i was at a store i started it with my remote and i look and see my CEL light was on with the same codes for the CPS and the CPS Ref. Well i reset it once again last night cus the car ran fine. well out of no where today it dose it again. Is it because of the cold? because the car seems to run fine wat should i do where can i get a sensor chea?p