Kia Sportage: Engine Control System / Rail Pressure Sensor (RPS) Troubleshooting

Service data review releated with fuel pressure sensor at idle and acceleration.
(Inspect low pressure fuel line between fuel pump and high pressure pump first
when the pressure of low pressure line is displayed low at idle.)
A : Idle
B : Acceleration
Inspection
1.
Connect the KDS/GDS on the Data Link Connector (DLC).
2.
Measure the output voltage and fuel pressure of the RPS at idle a ...
Specification
Accelerator
Position
Output Voltage (V) [Vref = 5V]
APS1
APS2
C.T
0.7 - 0.8
...
Other information:
The following maintenance services must be performed to ensure good emission
control and performance. Keep receipts for all vehicle emission services to protect
your warranty. Where both mileage and time are shown, the frequency of service is
determined by whichever occurs first.
I : Inspec ...
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 ...