Air Induction System
Air for combustion enters engine through throttle body at a rate controlled by the throttle valves, which are connected to accelerator pedal linkage. An adjustable idle by-pass air passage is incorporated within the throttle body that allows a regulated amount of air to by-pass the throttle valves.
The throttle valves are pre-set to slightly open position, even when throttle lever is resting against the idle stop position. A solenoid operated idle air compensator is used on Sevilles and Eldorados to aid in smooth idle with the A/C compressor engaged.
NOTE:
The throttle valve pre-set position is not adjustable. Additional air for cold starting is provided through an electrically operated (controlled) fast idle valve which is incorporated into top of throttle body.