The car engine problem is a serious problem and solve the car engine problem fast. Check the car engine and know the problem of the car engine. The car engine P2186 Code is found when the car engine was found. The engine code is meaningful and fix the car engine according to the meaning of the code. Deactivation of cylinders is realized by releasing a synchronizer pin that generally interlocks the cam follower and rocker arms. The engine P2186 code helps to solve the synchronizer pin is released using hydraulic pressure which is measured by a dedicated solenoid. A test drive is recommended.