The general meaning of the B2516 Code is suitable for learning but not using it for solving the car engine problem. Do not drive the car with any type of engine problem. The engine code is available and meanings of the code are also different. Do not use any common meaning or unassociated meaning of the car engine code for solving the car engine. The general meaning of the code is found online and do not follow that meaning for solving the car engine. After solving the car engine, a test drive is recommended and if you get any problem, then take the car back to repair center.