What does it mean when the GAC GS4 displays 'Check Emission System'?

1 Answers
Hall
07/30/25 9:07am
When the GAC GS4 displays 'Check Emission System,' it indicates a malfunction in the exhaust system. The causes of exhaust system failure include: 1. Fuel supply system and ignition system: Faults in the fuel supply system, ignition system, etc., can cause the engine to overheat, leading to sintering, peeling of the three-way catalytic converter carrier, and increased exhaust resistance. 2. Fuel or lubricating oil: Substandard fuel or lubricating oil can cause catalyst poisoning and reduced activity, thereby worsening vehicle performance, resulting in decreased power performance, increased fuel consumption, and deteriorated emissions. More related information is as follows: GAC GS4: The GAC GS4 is positioned as an 'International New Generation SUV.' The vehicle's length, width, and height are 4510mm, 1852mm, and 1708mm respectively, with a wheelbase of 2650mm.
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