To reduce or eliminate the amount of smog-creating pollutants emitted during the combustion process, the EGR valve recirculates a portion of the exhaust back through the process. This results in cooler combustion temperatures, which eliminates the formation of NOx emissions that contribute to air pollution.
Every OEM EGR Valve is calibrated for precision performance. To ensure trouble-free operation, all OEM EGR Valves must pass comprehensive quality testing, including computer-controlled bench testing for resistance, leakage and response and flow rates.