Hyundai Genesis: Engine Control System / Rail Pressure Sensor (RPS) Description and Operation
Rail Pressure Sensor (RPS) is installed on the delivery pipe
and 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.

Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the HO2S connector.
3.
Measure resistance between the HO2S terminals 1 and 2.
4.
Check that the resistance is within the speci ...
Other information:
Removal
1.
Remove the filler neck mounting screws (A) after opening the fuel filler door.
2.
Remove the rear-left wheel & tire and wheel house cover.
3.
Disconnect the fuel filler hose (A) and leveling hose (B).
4.
Disconnect the vent hose quick-connector (C).
5.
Remove the ...
Specifications
ItemsSpecificationsRated voltageDC 12VOperating voltageDC 9 ~ 16VOperating temperature-30°C ~ 75°C (-4°F ~ 158°F)Dark currentNon keyless type : 3.0 mA
...