The engine P0496 Code gives information of the car engine problem and you should follow the process of solving the car engine. The valves of each cylinder of the engine are saved closed using a pair of arms that substitute the conventional engine’s roller-type rocker arm. The engine P0496 code is one of these arms what follows the cam profile while the 2nd arm attaches to the valves. Through normal engine operation the 2 arms are linked by a locking pin. You will get some symptoms what you need to verify to identify the car engine problem and solve the car engine problem properly.