gio Vyper 4WD 1100cc 4 seater XY1100UEL, Service Manual

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11. EFI SYSTEM OF SQR 472ENGINE
11-8
4) Technical parameters
The water temperature sensor contains two thermistor, a dedicated water temperature signal input pin ECU, use A,
C, a water temperature sensor and instrumentation for temperature signal input pin, used for B and shell as earth.
Limit data
measure A, C value B, value unit
Rated voltage Run with ECU (5V)
Nominal resistance at 25 ℃ 1.825 to 2.155 K Ω
Operating temperature range -30 至 +130 ℃
The maximum current sensor 1 mA
Vibration acceleration license 600 m/s
(2) Characteristic data
A, C end temperature tolerance of
± 0.1
℃ (resistance ( Ω ))
B junction temperature tolerance
of ± 0.1
℃ (resistance ( Ω ))
number
Least The maximum Least The maximum
Temperature (c)
1 13.71 16.49 -20
2 1.825 2.155 +25
3 0.303 0.326 63.4 81.4 +80
5) Installation notes
The sensor should apply sealant in the installation process, suggestions on the selection of conductive sealant.
Sealant should be applied in the graphic (Figure 7) plane, should ensure that adequate smear that sealant after
tightening anhydrous leakage phenomenon; pay attention to installation thread does not allow fluid sealant, to
ensure that the assembly and disassembly and good conductivity sensor.
In the installation process of tightening, tighten six angle plane using spanner copper sleeve. May not be a
plastic parts are tightened, so as not to damage the product. Maximum tightening torque: 20N.m.
6) the malfunction phenomenon and the judgment method
General failure
1. The starting difficulty
A simple method for testing: (unloading joints) digital multimeter to Ohm, two probes are respectively
connected sensor A#, C# pin, 25
℃
rated 1.825~2.155K resistors. Measurement can also be used when the
simulation method, in particular to the sensor working area and dropped into the boiling water (note the
immersion time to fully), observe the change of the sensor resistance, the resistor should decline to 300
Ω
(specific value as the temperature of boiling water).
2. The water temperature indicating meter failure
Simple test method:
(unloading joints) digital multimeter to Ohm, two probes are respectively connected sensor B# pin and the
copper shell, using the simulation method, in particular to the sensor working area and dropped into the boiling
water (note the immersion time to fully), observe the change of the sensor resistance, the resistor should decline
to 60
Ω (the specific value as the temperature of boiling water).