Tracker 4x4 L4-1.6L VIN 6 (1995)
Throttle Body: Description and Operation
Throttle Body
THROTTLE BODY
The throttle body consists of the main bore, air bypass passage, vacuum passage (for Exhaust Gas Recirculation [EGR] system), and the following
parts.
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Throttle valve which is interlocked with the accelerator pedal and controls the amount of intake air.
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Fast idle air valve which supplies the bypass air when the engine is cold.
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Idle speed adjusting screw which controls the amount of bypass air to adjust idle air control duty (engine idle speed).
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Throttle Position (TP) sensor which detects the throttle valve opening and sends a signal to the ECM.
