Toyota Avensis ZZT251 2003 Service And Repair Manual page 289

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AVENSIS REPAIR MANUAL (RM1018E)
ENGINE CONTROL SYSTEM
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– THROTTLE BODY ASSY (1AZ–FE)
REMOVE THROTTLE BODY ASSY
Disconnect the throttle position sensor connector.
Disconnect the ISC valve connector.
Disconnect the water by–pass hose No. 2.
Disconnect the water by–pass hose.
Remove the fuel tube from the fuel pipe support.
Remove the 3 bolts, and then remove the fuel pipe sup-
port and the throttle body.
Remove the gasket from the intake manifold.
REMOVE FUEL VAPOR FEED HOSE NO.2
Remove the fuel vapor feed hose No. 2 from the throttle
body.
REMOVE ISC VALVE
Remove the 3 screws, and then remove the ISC valve.
Remove the gasket from the throttle body.
REMOVE THROTTLE POSITION SENSOR
Remove the 2 screws, and then remove the throttle posi-
tion sensor.