Diagnostic method, device and equipment based on engine cylinder deactivation control and storage medium

The embodiment of the invention discloses a diagnosis method and device based on engine cylinder deactivation control, equipment and a storage medium, and the method comprises the steps: obtaining an engine key signal when detecting that a motor carries out the engine cylinder deactivation control, and carrying out the diagnosis of the engine key signal, so as to determine the availability of the engine cylinder deactivation; if it is determined that the cylinder deactivation of the engine is available according to the availability, a motor target shutdown position obtained after motor synchronous control processing is conducted is obtained; performing diagnosis processing on the engine stop position according to the target stop position of the motor to obtain a stop position diagnosis result; and cylinder deactivation control time of engine cylinder deactivation control is obtained, and whether engine cylinder deactivation succeeds or not is determined according to the shutdown position diagnosis result and