Air Injection System: Description

NOTE: For 1974-78 models, see AIR INJECTION SYSTEMS article In this section. A pulse-air type air infection system is used on 1979 5-speed transmission equipped 210 Hatchbacks. For information on this system see DATSUN AIR INDUCTION SYSTEM article in this section.

The air injection system is designed to reduce the hydrocarbon (HC) and carbon monoxide (CO) content of exhaust gases by injecting a controlled amount of compressed air into the exhaust gas stream as it leaves the combustion chamber. See Figure. The system consists of a belt-driven air pump, air pump air cleaner, a check valve, various connecting hoses and pipes, and either a combined air control valve (Calif, models) or an air pump relief valve (Federal models).