Electric Divert (EDV)

This system is used on models that do not require air injection into the catalytic converter, and is controlled by an Electronic Control Module (ECM). When engine is operating in ``Open Loop'' mode, the valve is energized and air pump output is directed to the exhaust ports. However, a sudden rise in manifold vacuum will close the valve, momentarily diverting air to the air cleaner. When engine is operating in ``Closed Loop'' mode, the valve is not energized and the vacuum signal is blocked. Air pump pressure closes the valve and air is diverted to the air cleaner.