How to Solve the Roewe i5 Engine Emission Fault?
2 Answers
Start and turn off the vehicle several times in a row, or you can disconnect the negative terminal of the engine battery, wait for 30 seconds, and then reconnect it. If the warning light comes on while driving, immediately reduce speed and proceed to the nearest service station for inspection and repair. If the fault light comes on and the vehicle experiences severe shaking, lack of acceleration, or other symptoms, stop driving immediately.
Last time my car also had the emission warning light on, so I went straight to the gas station. The attendant said that with the upgraded fuel quality now, I should use 95-octane gasoline. After filling half a tank with higher-grade fuel and driving on the highway, the warning light went off by itself. Many car owners encounter this situation—don’t panic right away. Try running the engine at higher RPMs for about 20 minutes; the high temperature can burn off carbon deposits. If the light stays on, then you’ll need to check the trouble codes—chances are the rear oxygen sensor is clogged with carbon buildup. Just take it off and spray it with carburetor cleaner; no need to rush into replacing parts. Since then, I’ve made it a habit to take a highway trip every month, and I haven’t had any emission issues since.