Kia Carens: 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 adjusts
the fuel pressure with the fuel pressure regulator valve if the target pressure
and the actual pressure calculated by the RPS output signal are different.

Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the HO2S connector.
3.
Measure resistance betwe ...
Other information:
Use the sunvisor to shield direct light through the front or side windows.
To use a sunvisor, pull it downward.
To use a sunvisor for a side window, pull it downward, unsnap it from the bracket
(1) and swing it to the side. (2)
Adjust the sunvisor extension forward or backward (3). (if equipped)
T ...
Troubleshooting
Symptom
Possible cause
Remedy
Hard steering
Improper front wheel alignment
Excessive turning resistance of lower arm ball joint
Low tire pressure
No power assist
Correct
Rep ...