The B1927 Code explains the problem of the car engine and without fixing the car engine, it is not permitted to drive the car. The code reader shows the code and it is easy to identify the real problem of the car engine. The valves of individual cylinder are reserved shut using a pair of arms that substitute the conventional engine’s roller-type rocker arm. The B1927 code is one of these arms follows the cam profile while the 2nd arm attaches to the valves. Through normal engine operation, the 2nd arms are joined by a locking pin. After solving the problem, you need to test the car.