The engine P0736 Code need to solve and for solving the problem, you need to rely on the real meaning of the code. Due to the false meaning, you may experience of terrible problem in the car engine. The engine system, in conjunction with the engine control module (ECM) or powertrain control module (PCM), activates the engine P0736 code solenoid valve to control oil heaviness to the engine mechanism that is installed in the valve system to change valve timing between Low and High. If the engine solenoid valve has an open or short circuit, a DTC is stored. A test drive is recommended after solving the engine problem.