Exhaust Gas RECIRCULATION

The Exhaust Gas Recirculation (EGR) system is designed to reduce oxides of nitrogen (NOx) emissions by lowering combustion temperatures. A metered amount of exhaust gas is recirculated into the intake manifold and mixed with the air/fuel mixture. A linear EGR valve is used on all engines.

EGR valve includes electric motor to raise and lower EGR valve pintle and internal EGR valve pintle position sensor. EGR valve pintle is used to control EGR flow. PCM controls pintle based on engine temperature, engine RPM and EGR valve pintle position sensor inputs.