EGR System Components
WARNING: This page is about a different variant/trim than selected.
The EGR system returns a portion of the exhaust gas to the intake manifold to reduce the combustion temperature. This results in lower nitrous oxide formation.
The powertrain control module (PCM) controls the EGR vacuum regulator solenoid. The EGR vacuum regulator solenoid controls the vacuum to the EGR system module. When the EGR valve opens, exhaust gas flows to the intake manifold. The differential pressure feedback sensor measures the flow through the EGR valve from the exhaust manifold tube and sends a signal to the PCM. A metering orifice in the EGR valve-to-exhaust manifold tube restricts the flow rate when the EGR valve is open.