What Causes the Emission Fault Light to Illuminate on the Geely Boyue Engine?
3 Answers
Here is the relevant introduction to the emission fault light illumination: 1. Check the brake fluid level: The vast majority of vehicles have a brake fluid level warning, and the brake fluid warning light usually shares an indicator with the handbrake. Therefore, when the handbrake is released and the red handbrake light remains illuminated, it is necessary to check if the brake fluid level is low. Some models also input the brake fluid replacement mileage into the vehicle's computer, and after driving a certain distance, the onboard computer will prompt the need to replace the brake fluid on the dashboard or multimedia screen. 2. Replace the brake pads: The piston is pushed by the thrust generated when the brake fluid applies pressure, so the gap adjusted by the piston causes the internal space of the brake fluid pump to increase. The extra space needs to be filled by the brake fluid, ultimately leading to a drop in the fluid level in the brake fluid reservoir. For such issues, an appropriate amount of replenishment or direct replacement of the brake pads will suffice.
I drive a Geely Boyue, and the emission light is on, which is quite annoying. Common causes include a faulty oxygen sensor, which inaccurately monitors exhaust oxygen levels and causes the computer to improperly adjust fuel; a clogged catalytic converter, leading to poor exhaust purification and excessive emissions; carbon buildup in the fuel system, such as the injectors, causing uneven fuel spray and poor combustion; or possibly an exhaust leak or minor electrical fault. I used an OBD scanner to read the fault codes and identify the issue, such as code P0420 indicating a catalytic converter problem. Not fixing it poses significant risks: fuel consumption can spike by 10%, the car may shake or stall, and it pollutes the environment and harms health. For safety, don't push the car too hard. It's recommended to return to a 4S shop for professional inspection and part replacement. Regular use of higher-grade fuel and periodic cleaning can help prevent issues. Don't forget to reset the computer after repairs to turn off the light; otherwise, false alarms will persist and be bothersome.
Veteran driver's experience: The emission light on the Boyue mostly stems from sensor or exhaust issues. Aging oxygen sensors provide inaccurate signals, misleading the control unit; a failed three-way catalytic converter with low purification efficiency triggers faults; poor fuel quality with impurities clogging the injectors leads to incomplete combustion; or ignition system problems like faulty spark plugs causing weak ignition increase emissions. Ignoring these issues has severe consequences: costly catalytic converter replacement, doubled fuel consumption, and dangerous driving jerks. I once tried high-speed driving to temporarily clear carbon deposits, but it's not a long-term solution. Immediate shop diagnosis using specialized equipment to read codes and locate parts for replacement is advised—don't delay. Money-saving tips include using high-quality fuel and additives, but core safety concerns like the emission light and unstable driving should be prioritized to prevent accidents.
