The components for the Secondary Air Injection (AIR) system are located under
the air distributor between the intake manifold and the plenum chamber.
Looking at the engine while standing at the front of the vehicle, the pump
motor is located at the back of the engine, just to the right of the engine
centerline, standing up on a bracket, and is plumbed to the right and left
Combination valves located at the rear of each cylinder head.
'00 s4 6spd
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