What Causes the Exhaust System Warning Light to Illuminate?

[AxelLee]

Reasons for the exhaust system warning light to illuminate: 1. Poor quality of gasoline used in the vehicle, which may lead to abnormal air-fuel mixture, electronic component failures, and exhaust system abnormalities; 2. Malfunction of electronic components in the intake and exhaust systems, such as oxygen sensors, mass air flow sensors, throttle body, or carbon buildup inside the engine; 3. The engine control program may require updates or debugging. The automotive exhaust system refers to the system that collects and discharges exhaust gases, typically consisting of the exhaust manifold, exhaust pipe, catalytic converter, exhaust temperature sensor, muffler, and tailpipe. The primary function of the automotive exhaust system is to discharge the exhaust gases produced by the engine while reducing pollution and noise from the emitted gases.