Kia Sportage: Change to "winter weight" oil if necessaryIn some climates it is recommended that a lower viscosity "winter weight" oil be used during cold weather. See section 8 for recommendations. If you aren't sure what weight oil you should use, consult an authorized Kia dealer.
Check battery and cables
Check spark plugs and ignition systemLine Pressure Control Solenoid Valve: Repair procedures
Inspection
1.
Turn ignition switch OFF.
2.
Remove the air duct (A).
3.
Remove the air cleaner assembly.
(1)
Disconnect the breather hose (A) and brake booster intensifier hose.
(2)
...
Rail Pressure Sensor (RPS): Repair procedures
Inspection
1.
Connect the GDS on the Data Link Connector (DLC).
2.
Measure the output voltage of the RPS at idle and various engine speed.
ConditionOutput Voltage (V)Idle Approx. 1.21, ...