I was backing out of my drive way and when i went to put it in gear it shuts off and will not start again. I ran a diagnostic and 1404(EGR valve) and 1811(trans pressure control solenoid) codes came up. Could this be why my car will not start? although after further research a bad 3X-18X crankshaft position sensor fits the symptoms my car is having. Could you help me pinpoint my problem?