Hyundai i-30: Engine Control System / Oil Pressure & Oil Temperature Sensor (OPTS)
Description and operation
It generates the oil pressure and temperature information (output voltage) to
control the pump operation proportional control valve in variable oil pump system.
It measures the oil pressure and temperature discharged from the oil pump and
transmits the pressure information to ECM. The ECM controls the proportional
control valve to regularly keep the discharged pressure depending on RPM.
Specifications
Oil Pressure Sensor
▷ Type : Capacitive type
Pressure
|
Output Voltage (V)
|
bar
|
[MPa (kgf/cm², psi)]
|
[Vref=5V]
|
0.5
|
0.05 (0.5, 7.2)
|
0.3
|
1
|
0.1 (1.0, 14.5)
|
0.5
|
6
|
0.6 (6.1, 87.0)
|
2.5
|
11
|
1.1 (11.2, 159.5)
|
4.5
|
Oil Temperature Sensor
▷ Type : Thermistor type
Temperature [°C, (°F)]
|
Resistance (kΩ)
|
-40 (-40)
|
125.5 - 136.7
|
-30 (-22)
|
93.3 - 104.7
|
-20 (-4)
|
63.9 - 71.2
|
-10 (14)
|
41.8 - 46.5
|
0 (32)
|
26.8 - 30.1
|
10 (50)
|
17.2 - 19.2
|
20 (68)
|
11.1 - 12.5
|
25 (77)
|
9.0 - 10.1
|
30 (86)
|
7.4 - 8.3
|
40 (104)
|
4.9 - 5.5
|
50 (122)
|
3.3 - 3.8
|
60 (140)
|
2.3 - 2.6
|
70 (158)
|
1.6 - 1.8
|
80 (176)
|
1.2 - 1.3
|
90 (194)
|
0.86 - 0.97
|
100 (212)
|
0.64 - 0.72
|
110 (230)
|
0.48 - 0.54
|
120 (248)
|
0.37 - 0.41
|
130 (266)
|
0.28 - 0.32
|
140 (284)
|
0.22 - 0.25
|
150 (302)
|
0.17 - 0.2
|
160 (320)
|
0.14 - 0.17
|
Schematic diagrams
Harness Connector
Repair procedures
1. |
Switch "OFF" the ignition.
|
2. |
Remove the CVVT oil temperature sensor.
(Refer to - "Removal")
|
3. |
After immersing the thermistor of the sensor into engine coolant, measure
resistance between the OTS terminals 1 and 2.
|
4. |
Check that the resistance is within the specification.
Temperature
|
Resistance (kΩ)
|
°C
|
°F
|
-40
|
-40
|
41.74 - 54.54
|
-20
|
-4
|
14.13 - 16.83
|
0
|
32
|
5.28 - 6.3
|
25
|
77
|
1.88 - 2.14
|
40
|
104
|
1.08 - 1.12
|
60
|
140
|
0.56 - 0.61
|
80
|
176
|
0.31 - 0.33
|
140
|
284
|
0.07 - 0.08
|
|
1. |
Switch "OFF" the ignition and disconnect the negative (-) battery terminal.
|
3. |
Remove the engine room under cover.
(Refer to Engine Mechanical System - "Engine Room Under Cover")
|
4. |
Remove the oil pressure & oil temperature sensor (A) after disconnect
the oil pressure & oil temperature sensor connector.
Tightening Torque :
35.3 - 38.2 N.m (3.6 - 3.9 kgf.m, 26.0 - 28.2 lb.ft)
|
|
•
|
Install the component to the specified torques.
|
•
|
Note that internal damage may occur when the component is dropped.
In this case, use it after inspecting.
|
•
|
Apply the sealant to the sensor.
|
•
|
Insert the sensor in the installation hole and be careful not
to damage it during installation.
|
|
1. |
Install in the reverse order of removal.
|
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