10477071-10477072

INSPECTION

Rail Pressure Sensor (RPS) is installed at the end of the common rail and measures the instantaneous fuel pressure in the common rail by using its diaphragm. Its sensing element (semiconductor device) mounted on the diaphragm converts the fuel pressure to an electric signal.

SPECIFICATION

Test Condition	Rail pressure (bar)	Output Voltage (V)
Idle	220 ~ 320	Below 1.7
Fully depressed	1,800	Approx. 4.5

CIRCUIT DIAGRAM

SIGNAL WAVEFORM

REPLACEMENT

note

After replacing a Rail Pressure Sensor (RPS), MUST proceed below procedure.

1.

Turn ignition switch OFF.

2.

Connect a scan tool to Data Link Connector (DLC).

3.

Turn ignition switch ON.

4.

Select "ENGINE CONTROL".

5.

Select "MANUAL SELECTION MODE".

6.

Select "D 2.0L VGT DIESEL".

7.

Select "COMPONET CHANGE ROUTNE"

8.

Select "RAIL PRESSURE SENSOR CHANGE".

9.

Press "ENTER" key.

10.

Wait 10 seconds with IG ON.

11.

Turn ignition switch off.