Toyota 3S-GE Repair Manual page 269

EG-255
ENGINE — EFI SYSTEM _
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REMOVE THROTTLE BODY
Disconnect the folloiwing connectors:
(1) Throttle position sensor connector
(2) ISC valve connector
Disconnect the folloiwing hoses:
(1) Vacuum hose (from BVSV for EVAP)
(2) PCV hose
Remove the 4 bolts and gasket.
Disconnect the following hoses from the throttle
body, and remove the throttle body:
(1) Water bypass hose (from water outlet)
(2) Water bypass hose (from water bypass pipe)
, THROTTLE BODY INSPECTION
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*6 Pl 7852
CLEAN THROTTLE BODY
Using a soft brush and carburetor cleaner, clean the
cast parts.
Using compressed air, clean all the passages and
apertures.
NOTICE: To prevent deterioration. do not clean the
throttle position sensor.