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Home >> Mazda >> 1982 >> RX-7 S >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Deceleration Control System >> Operation
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Deceleration Control System: Operation

The No. 2 anti-afterburn valve (located below air cleaner) is actuated by the shutter solenoid valve to supply additional air from air cleaner to intake manifold at initial deceleration to prevent afterburning of fuel. The coasting/shutter valve work together to supply air (coasting valve) and fuel (shutter valve) during deceleration to prevent back firing.