Fuel Injection (Fuel System)
AIR LINE
FU-4
C: ATMOSPHERIC PRESSURE SENSOR
The atmospheric pressure sensor converts pressure values into electric signals, and sends the
signals to the ECM.
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.
(1) Sensor unit (6) Terminal
(2) O-ring (7) Inner lead
(3) Case (8) Resin
(4) Pipe (9) Metal lid
(5) Through capacity
H2H1869B
W2290GE_02_FU.fm 4 ページ ２００１年４月１１日 水曜日 午前９時３１分
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