Reed Valve Air Injection: Description

NOTE: For 1974-78 models, see AIR INJECTION SYSTEMS article in this section. The 1979 California B2000 and automatic transmission equipped GLC, use an air pump type air injection system. See MAZDA AIR PUMP AIR INJECTION SYSTEM article in this section.

This air injection system uses a reed valve which allows fresh air into exhaust manifold according to exhaust system pulsations. System consists of reed valve(s), air silencer, and connecting hoses and pipes. See Figure. A three-way catalytic converter is used to control HC, CO, and NOx exhaust emissions.