Hyundai Elantra (CN7): Engine Control System / Rail Pressure Sensor (RPS)
Description and operation
Installed on the delivery pipe, the Rail Pressure Sensor (RPS) measures the instantaneous fuel pressure in the delivery pipe. The sensing element (Semiconductor element) built in the sensor converts the pressure to voltage signal.
By using this signal, the ECM can control correct injection amount and timing and adjust the fuel pressure with the fuel pressure regulator valve if the target pressure is different from the actual pressure calculated by the RPS output signal.
Specifications
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Connect the diagnostic tool on the Data Link Connector (DLC). |
| 2. | Measure the output voltage of the RPS at idle and various engine speed.
Condition
| Output Voltage (V)
| Idle
| Approx. 1.2
| 1,500 rpm
| 2.0 - 2.2
| 6,300 rpm
| Approx. 2.8
|
|
| 1. | Release the residual pressure in fuel line. (Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line") |
| 2. | Turn the ignition switch OFF and disconnect the battery negative (-) cable. |
| 3. | Remove the intake manifold. (Refer to Engine Mechanical System - "Intake and Exhaust System") |
| 4. | Disconnect the rail pressure sensor connector and then remove the sensor (A) from the delivery pipe. Tightening torque : 29.4 - 34.3 N.m (3.0 - 3.5 kgf.m, 10.8 - 15.9 lb-ft) |
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| •
| 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. |
Description and operation
DescriptionIt generates the oil pressure and temperature information (output voltage) to control the pump operation proportional control valve in variable oil pump system.
Description and operation
DescriptionThe GDI injector is similar to a standard injector, but sprays fuel at a much higher pressure directly into the combustion chamber and has a swirl disc to get the fuel swirling as it exits the nozzle.
Other information:
Variant Coding
When you need variant coding:–
Replace Front View Camera with a new one※ EOL Variant Coding and calibration required for new replacementFront View Camera Variant CodingFront view camera variant coding makes it possible to operate functions for each vehicle type.
Diagnosis with Diagnostic tool1.In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (Diagnostic tool).The diagnostic system (Diagnostic tool) provides the following information.(1)Fault Code Searching : Checking failure and code number (DTC)(2)Data Analysis : Checking the system input/output data s
