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Home >> Mazda >> 1979 >> B2000 Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Exhaust Emissions System - Air Pump Air Injection System >> Operation >> Air Pump

Air Pump

Air pump draws fresh air from air cleaner, pressurizes it and drives it into the system hoses. A built-in relief valve diverts excess air pressure back to the air cleaner should it build up in air pump.