What to Do If the Exhaust Temperature of China VI Vehicles Is Too High?

[DelGavin]

China VI vehicles may experience high exhaust temperature due to the following reasons and solutions: 1. Excessive concentration of combustible mixture in the cylinder: Check if there is any malfunction in the oxygen sensor and fuel injection system. If the oxygen sensor fails, the vehicle cannot automatically control the fuel injection amount; 2. Abnormal cylinder pressure and ignition timing: Use a decoder to read the data stream from the knock sensor, then adjust the fuel injection amount and ignition timing based on the data stream information; 3. Normal phenomenon: Generally, the exhaust temperature at idle is around 30-50 degrees Celsius, while at high speeds, it ranges between 60-70 degrees Celsius.