The car engine P0065 Code is important thing and getting the real meaning is necessary for solving the car engine problem. Do not drive the car engine with any problem. Sooner, you will get the correct meaning of the code, faster you can fix the car engine problem. The meaning of the engine code is online and car manual. The P0065 engine code is a kind of powertrain problem and this is not difficult problem for the car engine. The lifters can be distorted by disengaging an inner locking pin. The locking pin is disengaged by means of solenoids to modify oil compression fed into the lifter.