THROTTLE BODIES
6-10
h. Use the vacuum/pressure pump gauge set to
adjust the fuel pressure in relation to the vac-
uum pressure as described below.
NOTE:
The vacuum pressure should not exceed 100
kPa (760 mm Hg).
Faulty → Replace the pressure regulator.
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EAS27030
ADJUSTING THE THROTTLE POSITION
SENSOR
1. Check:
• Throttle position sensor
Refer to “CHECKING THE THROTTLE PO-
SITION SENSOR” on page 7-104.
2. Adjust:
• Throttle position sensor angle
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a. Connect the throttle position sensor coupler
to the throttle position sensor.
b. Connect the digital circuit tester to the throttle
position sensor coupler.
c. Measure the throttle position sensor voltage.
d. Adjust the throttle position sensor angle so
that the voltage is within the specified range.
e. After adjusting the throttle position sensor an-
gle, tighten the throttle position sensor
screws “3”.
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ET5YU1016
INSTALLING THE FUEL PIPE
1. Install:
• Fuel pipe “1”
NOTE:
Install the fuel pipe “1” so that it contacts the pro-
jections “a” on the injector joints.
• Increase the vacuum pressure →
Fuel pressure is decreased
• Decrease the vacuum pressure →
Fuel pressure is increased
• Positive tester probe
yellow terminal “1”
• Negative tester probe
black terminal “2”
Digital circuit tester
90890-03174
Throttle position sensor voltage
0.63–0.73 V
T
R
.
.
Fuel pipe bolt
30 Nm (3.0 m·kg, 22 ft·lb)
2
1
3
3
a
1
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