last night my car almost left me on the side of the road. after we were able to get it to advanced auto parts they hooked it to the machine and it was throwing codes for the cam shaft sensor and the fuel pump. My boyfriend was able to change the fuel pump last night and the car would start but still ran like crap so this morning he replaced the camshaft sensor and gets it in and all put back together and now the car will turn over but wont crank completely...