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THROTTLE POSITION SENSOR SYSTEM
1
HANDLING NOTE
CAUTION:
Do not loosen the screws (throttle position
sensor) 1 except when changing the throt-
tle position sensor due to failure because it
will cause a drop in engine performance.
EC624000
COUPLERS AND LEADS CONNECTION
INSPECTION
1. Check:
Couplers and leads connection
G
Rust/dust/looseness/short-circuit →
Repair or replace.
THROTTLE POSITION SENSOR COIL
INSPECTION
1. Inspect:
Throttle position sensor coil resistance
G
Out of specification → Replace.
Tester (+) lead → Blue lead 1
Tester (–) lead → Black lead 2
Throttle posi-
tion sensor coil
resistance
4 ~ 6 kΩ at
20 ˚C (68 ˚F)
2. Loosen:
Throttle stop screw 1
G
NOTE:
Turn out the throttle stop screw until the throt-
tle shaft is in the full close position.
6 - 8
–
+
ELEC
Tester selector
position
kΩ × 1
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