The sensor measures the instantaneous fuel pressure in the high-pressure accumulator and transmits a signal to the ECM.
Fuel under pressure through the hole acts on the sensor diaphragm, on which the sensor element is installed (semiconductor device). converting pressure into an electrical signal. The generated and amplified signal is transmitted to the ECU via the connector contacts and the electrical circuit.
Replacing the sensor
1. If the RPS sensor output voltage is not as specified, replace the sensor.
2. Replace the sensor taking into account the following requirements.
- if the sensor is reinstalled, replace the soft metal sealing washer;
- when removing the seal, do not damage the sealing surface;
- when installing the sensor, apply a small amount of lubricant to the sealing washer;
- tightening torque: 35±2 Nm.
(The original text is available on the website www.hyundaibook.ru)