This car engine P3446 Code conveys information and by that information, it is easy to fix the car engine. The car engine should be fully ok and without real meaning of the code, it is not easy to solve the car engine. Deactivation of cylinders is realized by releasing a synchronizer pin that customarily interlocks the cam follower and rocker arms. The car engine P3446 code resolves the synchronizer pin is unconfined using hydraulic pressure which is skillful by a dedicated solenoid. Fix the car engine problem fast before you take the car for driving and when it is fixed, you can drive properly.