Due to the car engine problem, you cannot run the car. In fact, you may face more new problems. You need to find the real cause of the car engine problem and follow the process of solving the car engine. During the testing of the car engine, the engine P1240 Code has come on the engine code reader screen what explains about the car engine problem. If you want to solve all problems from the engine and want to drive the car properly, you must read the real meaning of the code. Do not try to fix the car engine in you place, if all tools are not available.