OIL PRESSURE SENSOR - OPS SENSOR

POST UPDATED IN September, 2020

What is the OPS sensor?

Many vehicles have a visual indicator on the dashboard, whose function is to indicate, for example, the oil pressure. In this way it is useful for the driver, as this way he can be attentive when situations arise in which the oil pressure is excessively low or excessively high.

In 4-cylinder engines, the Oil Pressure Sensor (OPS) is located on one side of the engine, and its position is close to the start. It has an electrical connection that is covered in a small black plastic and is fixed by a screw to the motor.

In 6-cylinder engines it is below the spark plug wires, and is fixed by one side of the valve cover.

There are cases in which the sensors are connected directly to earth, and in other cases they have the earth independently, by another connection. A warning contact can be added to this sensor, which will be used to indicate when the pressure limit has been reached, as well as making measurements continuously.

How does the OPS sensor work?

The Oil Pressure Sensor (OPS) sends a signal to the ECU (Engine Control Unit) referring to the engine oil pressure. When looking at the board, a signal similar to a lamp, this is the OPS sensor that is emitting the signal to this indicator. To send this signal is based on the electromechanical principle.

This indicator, which persistently indicates the value of the oil pressure in the main motor conductor, is a remote measurement barometer.

It should be noted that this driver receives directly the oil that comes from the oil pump, to be distributed to the rest of the engine.

 

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