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:
Description
Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed
both upstream and downstream of the Manifold Catalytic Converter. The sensor
output voltage varies in accordance with the air/fuel ratio.
The sensor must be hot in order to operate n ...
The Exhaust Emission Control System is a highly effective system which controls
exhaust emissions while maintaining good vehicle performance.
Vehicle modifications
This vehicle should not be modified. Modification of your vehicle could affect
its performance, safety or durability and may even ...