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Home >> Nissan-Datsun >> 1973 >> 240Z Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Exhaust Emission Systems >> Description >> Throttle Opener Control System
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Throttle Opener Control System

Opens throttle valves of carburetor during deceleration to maintain a burnable mixture in engine and reduce exhaust emissions. Components used in this system are a throttle opener solenoid, a servo diaphragm, a vacuum control valve and a speed switch (Man. Trans.) or an inhibitor switch (Auto. Trans.).