Recently did oil change then installed exhaust side vvt solenoid once installed scanned and cleared p0013, camsaft position actuator circuit open bank 1. car turns on but rpms drop right away and engine shuts off, once i start the car again if i rev alittle once the rpm acting up the car stays running and operates fine. This only happens when car is turned on cold start once the oil is hot i dont have to rev abit to stay on. Engine light stays off and once i hook up scanner shows no codes.