What are the symptoms of a faulty Honda EGR valve?

1 Answers
VanAdam
07/30/25 1:27am
When the EGR valve fails, symptoms may include extremely unstable idle or even stalling, flashing check engine light, failure to meet emission standards during annual inspection, oil burning, and blue exhaust smoke. Below is an introduction to the EGR system: 1. Introduction: 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 typically 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. 2. Function: Its role is to regulate the amount of exhaust gas entering the intake manifold, allowing a certain quantity of exhaust gas to flow into the intake manifold for recirculation. The EGR valve is a crucial and key component in the exhaust gas recirculation system.
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