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Home >> Mazda >> 1979 >> B2000 Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Exhaust Emissions System - Deceleration Control System >> Operation >> Throttle Positioner System >> Notes

Throttle Positioner System: Notes

Used in 1979 models, this system will lean out mixture after initial rich setting when carburetor throttle blades close during deceleration. This system holds throttle blades slightly open to maintain balanced air/fuel mixture. Throttle blades will be held open when decelerating over 1000 RPM. Component operation is described below.