What are the symptoms of a faulty Wuling Rongguang EGR valve?

1 Answers
LeElliot
07/29/25 6:07pm
The most obvious symptom of a faulty Wuling Rongguang EGR valve is that it causes the engine's idle speed to become extremely unstable, even stalling. The EGR valve is a component of the exhaust gas recirculation control system. When the EGR valve fails, symptoms may include extremely unstable idle speed or stalling, flashing check engine light, failure to meet emission standards during annual inspection, burning engine oil, and blue smoke from the exhaust. Below is more information about the EGR valve: The EGR valve is a mechatronic product installed on diesel engines to control the amount of exhaust gas recirculated back into the intake system. It is usually located on the right side of the intake manifold, near the throttle body, and is connected to the exhaust manifold via a short metal pipe. Its function is to regulate the amount of exhaust gas entering the intake manifold for recirculation. The EGR valve is a crucial component in the exhaust gas recirculation system, used to reduce the emission of nitrogen oxides (NOx) in the exhaust.
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