When you want to fix the car engine by yourself you need to how to fix the car engine and you have to use some tools and expensive machines. The car engine P1564 Code is found for the testing the car engine. From the meaning of the code, it is understandable that P1564 engine code seems a sort of powertrain problem what is not difficult to solve. The engine system starts the engine P1564 code solenoid regulator to switch oil compression to the engine instrument that is connected in the valve system to change valve timing between High and low. If the engine solenoid regulator has an open or short circuit and a DTC is kept.