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FI
THROTTLE BODIES
f. While slowly opening the throttle, check that
the throttle position sensor resistance is
within the specified range.
The resistance does not change or it
changes abruptly → Replace the throttle
position sensor.
The slot is worn or broken → Replace the
throttle position sensor.
NOTE:
Check mainly that the resistance changes
gradually when turning the throttle, since the
readings (from closed to wide-open throttle)
may differ slightly from those specified.
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2. Adjust:
• throttle position sensor angle
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a. Connect the throttle position sensor coupler
to the wire harness.
b. Connect the digital circuit tester to the throt-
tle position sensor.
c. Measure the throttle position sensor volt-
age.
d. Adjust the throttle position sensor angle so
the measured voltage is within the specified
range.
e. After adjusting the throttle position sensor
angle, tighten the throttle position sensor
screws.
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Throttle position sensor resis-
tance
0 ~ 5
±
1.5 k
Ω
at 20 °C (68 °F)
(yellow - black)
Tester positive probe
→
blue terminal
1
Tester negative probe
→
yellow terminal
2
Throttle position sensor voltage
0.63 ~ 0.73 V
(yellow - blue)