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Home >> Dodge and Ram >> 1979 >> Colt Custom >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Deceleration Fuel Cut-Off >> Description
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Deceleration Fuel Cut-Off: Description

Deceleration fuel cut-off system reduces HC emissions through use of an air switching valve, solenoid valve, and engine speed sensor. This system cuts off fuel to by-pass holes and pilot outlet by supplying additional air into the slow idle passage.