Hyundai Elantra: Engine Control System / Oil Pressure Sensor (OPS)

Hyundai Elantra (CN7) 2021-2025 Service Manual / Engine Control / Fuel System / Engine Control System / Oil Pressure Sensor (OPS)

Description and operation

Description

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

Pressure [kPa (kgf/cm², psi)]	Output Voltage (V) [Vref = 5.0V]
50 (0.5, 7.25)	0.3
100 (1.01, 14.5)	0.5
600 (6.11, 87.02)	2.5
1100 (11.21, 159.54)	4.5

Schematic diagrams

Circuit Diagram

Harness Connector

Repair procedures

Inspection

1.	Switch "OFF" the ignition.

2.	Remove the oil pressure & oil temperature sensor.

3.	Measure the between terminal oil pressure & oil temperature sensor.

Check that the resistance is within the specification.

Specification : Refer to "Specification"

Removal

1.	Turn the ignition switch OFF and disconnect the battery negative (-) cable.

2.	Lift the vehicle.

3.	Remove the engine room under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover")

Disconnect the oil pressure & oil temperature sensor connector (A), and then remove the oil pressure & oil temperature sensor (B).

Tightening Torque :

14.7 - 21.6 N.m (1.5 - 2.2 kgf.m, 10.8 - 15.9 lb-ft)

Installation

•	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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[A] : Type A, [B] : Type B

1. Select any fan speed except “0” position.

2. Select the desired temperature.

3. Select the or position.