Fix the car engine by the real meaning of the car engine code’s meaning. The car engine P2201 Code is found on the car engine and on the code is found on the car engine code reader screen. If you know how to fix the car engine, you can start. The controllers of individual cylinder are remained closed using a pair of arms that trade the conventional engine’s roller-type rocker arm. The engine P2201 code is one of these arms what follows the cam profile while the 2nd arm joins to the valves. During the normal engine operation the 2 arms are linked by a locking pin.