240 L4-2127cc 2.1L SOHC Turbo B21FT FI (1982)
Fig. 10 EXHAUST GAS RECIRCULATION SYSTEM, WITH THROTTLE FULLY OPEN
When the throttle is fully open, Fig. 10, atmospheric pressure in the intake manifold is transmitted to the vacuum chamber of the E.G.R. valve. The
pressure on both sides of the diaphragm is now equal which permits the valve to close under spring tension. Exhaust gas recirculation has now stopped.
COMPONENTS:
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Fig. 40 E.G.R. VALVE
E.G.R. VALVE
The E.G.R. valve is a vacuum activated shut-off and metering valve. It controls the flow of recirculated exhaust gases from the exhaust to the intake
manifold. The valve is operated by engine vacuum. Fig. 40.
