Consequences of EGR damage and causes of EGR problems.
If the EGR valve is stuck in the open position and cannot be fully closed, it will cause the car engine to stall at idle speed or shake at idle speed, and it will also cause many black smoke conditions when the car engine is working. And once this kind of problem occurs, it will not only be black smoke, but also be accompanied by the problem of engine power decline. If the EGR valve fails to close, it will cause problems such as insufficient power and speed loss of the car engine when running at high speed, which indicates that the EGR valve cannot be closed.
The exhaust gas recirculation valve is stuck in the closed position and cannot be fully opened, which has an impact on the vehicle's emissions. The vehicle's emissions will not meet the standard. At this time, if you go to the annual inspection, it is likely to fail.
However, whenever there is a problem with the exhaust gas recirculation valve, the EPC fault indicator will light up. The problem of the exhaust gas recirculation valve may be caused by the following reasons: 1. The quality of the exhaust gas recirculation system itself. 2. Improper maintenance. 3. The exhaust valve is aged. 4. The quality of oil (fuel).
The function of exhaust valve is to moderately reduce fuel consumption, improve the working efficiency of automobile engine, reduce exhaust temperature, and reduce the generation of nitric oxide chemicals and carbon monoxide gas.