What causes the emission system malfunction in GAC Trumpchi GS4?
2 Answers
Here is the relevant introduction to the emission system malfunction in GAC Trumpchi GS4: 1. Poor fuel quality: If the gasoline quality is poor, it may cause abnormal air-fuel mixture, electronic component failures, and exhaust system abnormalities; 2. Intake/exhaust system failure: Malfunctions in electronic components of the intake/exhaust system, such as oxygen sensors, carbon canister purge valves, mass air flow sensors, electromagnetic control valves on turbochargers, throttle body, or carbon deposits inside the engine; 3. Program debugging: The engine control program may require updates or appropriate debugging.
The GAC GS4 emission system failure usually has several common causes. My car encountered this issue before, with symptoms including the engine warning light turning on, noticeable power loss, and slightly increased fuel consumption. This fault may involve a failed oxygen sensor, which monitors exhaust emissions – inaccurate data can lead to system misjudgment. A clogged catalytic converter is another potential problem, as carbon buildup can affect exhaust treatment. Loose electrical connections or control valve malfunctions may also trigger faults, especially when using low-quality fuel. For diagnosis, it's best to first read the trouble codes for quick problem identification. I recommend visiting a 4S shop or professional repair facility promptly for thorough inspection to prevent minor issues from escalating. Untreated emission faults not only affect vehicle performance but may also violate environmental regulations, risking substantial fines. Regular maintenance with periodic cleaning of related components can reduce occurrence probability.
