What are the causes of engine control module failure?
1 Answers
Engine malfunction has occurred. More information about engine control module failure is as follows: 1. Engine malfunction: When the computer receives parameters from the oxygen sensor and the tailpipe emissions severely exceed the national legal standards, the internal program of the computer cannot adjust to the standard range. At this time, the engine control computer will trigger a warning light on the dashboard indicating excessive pollution emissions (yellow pollution light), to remind the owner to check the engine pollution emission light at the repair station. 2. Engine shaking: This indicates incomplete combustion of the air-fuel mixture inside the cylinders, which causes the engine to shake. The incompletely burned mixture is expelled through the exhaust valves during the engine exhaust process. An oxygen sensor is installed in the exhaust pipe to monitor the oxygen content in the exhaust gases. The more completely the mixture burns in the cylinder, the less oxygen remains, and vice versa. The oxygen sensor converts this working principle into electrical signals that the computer can recognize and sends them to the engine control computer. The computer then uses preset software programs to adjust and calculate parameters collected from various sensors on the engine, sending commands to the ignition and fuel injection systems. Upon receiving these commands, these systems adjust their working parameters to complete ignition and fuel injection, allowing the engine to re-enter the combustion cycle. This process repeats continuously to adjust the engine's operation.
