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THROTTLE BODY
1.
Remove the throttle position sensor by unscrewing the phil-
lips-head screws.
NOTE
Except when necessary for replacement. the throttle posi-
tion sensor must not be removed.
2.
Remove the ISC servo assembly.
NOTE
1) Except when necessary for replacement. the ISC servo
assembly should not be removed.
2) The ISC servo assembly should not be disassembled.
3.
Use an open-end wrench or box wrench to remove the adjust-
ment screw.
INSPECTION
Cleaning Throttle Body Components
Y31GBOA
1.
Clean all components. The following components must not
be cleaned by immersion in cleaning solvents.
o Throttle position sensor
o
ISC servo assembly
The insulation of these components will be damaged if they
are immersed in a cleaning solvent. They should be cleaned
by using only a piece of cloth.
2.
Check for restriction of the vacuum port or passage. Clean
the vacuum passage by using compressed air.
31-68
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