Emission Control

The ECU electrically controls Exhaust Gas Recirculation (EGR). An ECU-controlled solenoid valve is used to control EGR valve function. This valve is located on the left inner fender panel and is operated by the ECU in response to coolant temperature, throttle position, and manifold pressure.

Under conditions of engine warm-up, engine idle, wide open throttle, or rapid acceleration/deceleration, the solenoid valve is energized, blocking vacuum to the EGR valve. At normal operating temperatures with engine speed above idle, the solenoid valve is de-energized, allowing normal EGR valve function.