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What Are the Effects of a Faulty Exhaust Gas Recirculation Valve on a Vehicle?

1 Answers

DelGideon

07/29/25 1:27pm

Faulty exhaust gas recirculation valves can lead to unstable idling, poor acceleration, increased fuel consumption, and insufficient power. Below is an introduction to exhaust gas recirculation: 1. Introduction to Exhaust Gas Recirculation: Exhaust gas recirculation is a technique (or method) used in small automotive internal combustion engines where a portion of the exhaust gas is recirculated back into the intake side after combustion. Its primary purpose is to reduce nitrogen oxides (NOx) in the exhaust gases and improve fuel economy under partial load conditions. It is commonly referred to by the acronym 'EGR', derived from the initial letters of each English word. 2. Types of EGR Systems: Mechanically controlled EGR system, electronically controlled EGR system, directly controlled EGR system, indirectly controlled EGR system, single-valve controlled EGR system, multi-valve controlled EGR system, open-loop controlled EGR system, closed-loop controlled EGR system.

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