Air Injection Pump: Description and Operation

Secondary Air Injection Pump, Typical:

Description and Operation
The secondary air injection pump (AIR) pump is:

^ an electric air pump, which supplies pressurized air to the engine to aid in the reduction of emissions during the first 20 to 120 seconds of engine operation.

^ controlled by the powertrain control module.

^ remote-mounted and incorporates a nonserviceable filter and splash shield.