The role of the oil pressure regulator is to keep the pressure difference between the fuel pressure and the negative pressure of the intake pipe constantly constant, so that the fuel injection quantity is only determined according to the energization time of the fuel injection solenoid valve. If the vacuum diaphragm of the oil pressure regulator is damaged, or the vacuum hose leaks, the oil return volume of the pressure regulator will be out of balance, making the fuel injection volume of the engine inaccurate, and the engine will not work well.
The correct ignition timing and sufficient ignition voltage are important conditions to ensure the normal operation of the engine. When the basic ignition timing is assembled, the best ignition timing under each speed condition is automatically controlled by the ECU, and the ignition voltage is related to the ignition coil. Performance related. Common failures of general ignition coils, such as coil winding short circuit, open circuit or grounding, will lead to no high voltage electricity; in addition, the insulation layer material of the ignition coil is aging, the insulation performance is deteriorated, and the leakage of the ignition coil makes the electric spark weak and the ignition energy is not enough , resulting in unstable idling, intermittent flameout and failure to fire. In case of such a failure, it is necessary to check whether the resistance and insulation performance of the ignition coil meet the requirements, and replace it if it does not meet the requirements.