If you feel that the car engine is not running well, you check the car engine. The car engine can be tested in the in the car engine repair center. The engine P1748 Code is found for the test and the engine is set in every car engine. The meaning of the code helps to get the real cause of the engine problem and fix the car engine properly. The engine P1748 engine code seems a sort of powertrain problem and this problem can be fixed easily. The powertrain of the car engine is easy to solve and cheap. You may try to in you place to fix the car engine if you have all machines.