4-70 FI SYSTEM DIAGNOSIS
ET SENSOR INSPECTION
The engine temperature sensor is installed at the cylinder.
(
4-41)
• Check the ET sensor by testing it at the bench as shown in
the figure. Connect the ET sensor
1
to a circuit tester and
place it in the oil
2
contained in a pan, which is placed on a
stove.
09900-25008: Malti circuit tester set
Tester knob indication: Resistance (
Ω
)
• Heat the oil to raise its temperature slowly and read the col-
umn thermometer
3
and the ohmmeter.
• If the ET sensor ohmic value does not change in the propor-
tion indicated, replace it with a new one.
ET sensor specification
ET SENSOR REMOVAL AND INSTALLATION
• Disconnect the ET sensor coupler
1
.
• Remove the ET sensor
2
.
• Install the ET sensor in the reverse order of removal.
ET sensor: 18 N·m (1.8 kgf-m, 13.0 lb-ft)
IAT SENSOR INSPECTION
The intake air temperature sensor is installed on the top side of
the outlet tube. (
4-45)
IAT SENSOR REMOVAL AND INSTALLATION
• Lift up the fuel tank by removing the fuel tank mounting
bolt.(
5-3)
• Remove the IAT sensor.
• Install the IAT sensor in the reverse order of removal.
Engine Temp.
Resistance
20 °C (68 °F)
Approx. 4.2 k
Ω
50 °C (122 °F)
Approx. 2.0 k
Ω
80 °C (176 °F)
Approx. 0.5 k
Ω
110 °C (230 °F)
Approx. 0.3 k
Ω
Содержание TU250X
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