What should I do if the EGR valve of Haval H5 engine fails?

It may be caused by pollution or damage of ECU control, so you can go to 4S shop to replace EGR valve. The related introduction of EGR valve is as follows: 1. EGR valve is a mechatronics product installed on diesel engine, which is used to control the amount of exhaust gas recirculation fed back to the intake system. It is usually located on the right side of the intake manifold near the throttle body and connected to a short metal pipe leading to the exhaust manifold. It only opens when the engine is under medium load and closes when it is under low load and high load. 2. The function of 2.EGR valve is to control the amount of exhaust gas entering the intake manifold, so that a certain amount of exhaust gas flows into the intake manifold for recirculation. If the EGR valve is broken, there will be phenomena such as extremely unstable idle speed or even flameout, flashing fault lights, substandard emission, burning engine oil, blue smoke from tail gas and so on.