The P1373 engine code seems a kind of powertrain problem what is not difficult to solve. The problem can be fixed by an automobile engineer if he has the right meaning of the code and he has all necessary tools. The engine P1373 code had an wonderful diagnostics process, with presentation engine trouble codes on the air taming display. However, the system was troublesome, misinterpreted by customers, and a rash of random failures led to the technology being rapidly retired. The main multi-displacement system shut off the opposite pairs of cylinders, letting the engine to have 3 dissimilar configurations and shifts.