Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2008 Kia Magentis 2.7 4FACTORY OEM SERVICE PROCEDURE

Component Inspection

Connect a scan tool on Diagnosis Link Connector (DLC).

Start engine and check output voltages of APS 1 and 2 at C.T. and W.O.T.

SPECIFICATION

VOLTAGE OUTPUT SPECIFICATION

Condition	Output Voltage (V)
Condition	APS1	APS2
C.T.	0.70-0.80	0.29-0.46
W.O.T.	3.85-4.35	1.93-2.18

Turn ignition switch OFF and disconnect the scan tool from the DLC.
Disconnect APS connector and measure resistance between APS terminals 4 and 5 (APS 1).
Specification: Refer to SPECIFICATION .
Disconnect APS connector and measure resistance between APS terminals 1 and 6 (APS 2).

Fig 1: Measuring Resistance Between APS Terminals
Courtesy of KIA MOTORS AMERICA, INC.

Specification: Refer to SPECIFICATION .

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.