Will the car's sensor malfunction trigger the warning light?
1 Answers
Yes, it will. Below is relevant information about sensor-triggered warning lights: 1. Function of the oxygen sensor: The oxygen sensor is one of the critical sensors in the engine control system. Poor performance of the oxygen sensor can affect the normal operation of the engine. If it is damaged, the engine warning light will illuminate, and prompt repair is recommended. The oxygen sensor detects the oxygen concentration in the exhaust and sends feedback signals to the ECU, which then adjusts the fuel injector's fuel supply to maintain the air-fuel ratio near the theoretical value. 2. Role of the sensor: The sensor measures whether there is excess oxygen in the engine's exhaust after combustion, i.e., the oxygen content, and converts this information into a voltage signal sent to the engine computer. This enables the engine to achieve closed-loop control based on the excess air factor, ensuring that the three-way catalytic converter maximizes the conversion efficiency of hydrocarbons (HC), carbon monoxide (CO), and nitrogen oxides (NOx) in the exhaust, thereby optimizing the reduction and purification of emissions. 3. Symptoms of sensor failure: If the car's oxygen sensor malfunctions, the electronic fuel injection system's computer will not receive information about the oxygen concentration in the exhaust pipe, preventing feedback control of the air-fuel ratio. This can lead to increased fuel consumption and exhaust pollution, as well as engine issues such as unstable idling, misfires, and surging. Therefore, it is essential to promptly address the malfunction or replace the sensor.
