This car engine P2542 Code is found after the car engine is tested. Meaning of code is important and lets you know about the car engine problem and it also helps to identify the problem and location of the car engine problem. You can test the car engine in the car repair center where all machines and tools are available. You can check the car engine by an automobile engineer. The meanings of the car engine code are available from automobile manufacturers and general meaning of the code. The automobile engineer must use the manufacturer’s meaning of the code for solving the car engine problem.