Description - EGR Air Flow Control Valve: Notes
WARNING: This page is about a different variant/trim than selected.
DESCRIPTION EGR AIR FLOW CONTROL VALVE
| 1 - Exhaust Gas Recirculation Air Flow Control Valve Bolts |
| 2 - Exhaust Gas Recirculation Air Flow Control Valve |
- The Exhaust Gas Recirculation (EGR) Air Flow Control Valve is attached to the intake manifold. The EGR Air Flow Control Valve is controlled by the Powertrain Control Module (PCM).
OPERATION
- The EGR Air Flow Control Valve adjusts the flow of fresh air into the engine during EGR operation. A signal from the PCM controls the operation of the EGR throttle valve. The position at which the PCM will set the valve depends on the blended quantity of exhaust gas that needs to be recirculated into the engine in order for the exhaust gas to remain within the target emission level, which the PCM calculates based on input received from the oxygen sensors. When not actuated, the EGR throttle valve is in the open position.