Ect Sensor Inspection - Suzuki VZ800 Service Manual

5-46 FI SYSTEM

ECT SENSOR INSPECTION

• Remove the ECT sensor. (5-77)
• Check the ECT sensor by testing it at the bench as shown in
the figure. Connect the ECT sensor 1 to a circuit tester and
place it in the oil 2 contained in a pan, which is placed on a
stove.
• Heat the oil to raise its temperature slowly and read the col-
umn thermometer 3 and the ohmmeter.
• If the ECT sensor ohmic value does not change in the propor-
tion indicated, replace it with a new one.
 ECT sensor specification
Engine Coolant Temp
20 °C (68 °F)
40 °C (104 °F)
60 °C (140 °F)
80 °C (176 °F)
 09900-25008: Multi-circuit tester set
 Tester knob indication: Resistance (Ω)
If the resistance is noted to show infinity or too much different
resistance value, replace the ECT sensor with a new one.

* Take special care when handling the ECT sensor. It
may cause damage if it gets a sharp impact.
* Do not contact the ECT sensor and the column ther-
mometer with a pan.
Resistance
Approx. 2.45 kΩ
Approx. 1.148 kΩ
Approx. 0.587 kΩ
Approx. 0.322 kΩ