The engine P217D Code comes for the car engine problem and it is used for finding the real cause of the car engine. Deactivation of cylinders is achieved by releasing a synchronizer pin that normally interlocks the cam follower and rocker arms. The engine P217d code resolves the synchronizer pin is released using hydraulic compression which is controlled by a dedicated solenoid. The car service manual should be checked for more information on conceivable reasons of the fault, along with compulsory testing. Parts of the car engine are necessary to solve. Do not drive the car with the car engine problem.