Air Line - Subaru LEGACY 2002 Quick Reference Index

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Fuel Injection (Fuel System)

C: ATMOSPHERIC PRESSURE SENSOR

The atmospheric pressure sensor converts pressure values into electric signals, and sends the

signals to the ECM.

(1) Sensor unit

(5) Through capacity

D: THROTTLE BODY

In response to operation of the accelerator pedal, the throttle valve in the throttle body opens/clos-

es to regulate the volume of the air drawn into the combustion chamber.

During idling, the throttle valve is almost fully closed and the volume of air passing through the

throttle body is less than that passing through the idle air control solenoid valve.

More than half of the air necessary for idling is supplied to the intake manifold via the idle air con-

trol solenoid valve which controls properly the engine idling speed, so the idling speed needs not

be adjusted.

AIR LINE

(6) Terminal

(7) Inner lead

(9) Metal lid

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