This engine P2748 Code has some meanings and right meaning of the code helps here most for solving the car engine. You need to fix the car engine as soon as possible if you want to drive the car safely. Know the correct meaning of the code and check the car engine manually. The original multi-displacement method turned off opposite pairs of cylinders, allowing the engine to have three different configurations and displacements. The car engine P2748 code had an elaborate diagnostics process, including showing engine error codes on the air conditioning display. Do not pick any other meaning what may make more problem in the car engine.