Marquis L4-140 2.3L VIN A 1-bbl (1986)
Throttle Full Close Switch: Description and Operation
The idle tracking switch, is a mechanically operated electric switch held open by the throttle linkage when the throttle is closed.
Mercury Workshop Service and Repair Manuals
Throttle Position Sensor >
< Pressure Feedback Exhaust Sensor, EGR|Description and Operation
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