Resistance Inspection

Disconnect connector from throttle position sensor.
Connect ohmmeter between sensor terminals 1 and 2.
Verify that resistance increases linearly according to throttle angle.

Fig 1: Illustrating Throttle Position Sensor Connector
Courtesy of KIA MOTORS AMERICA, INC.

Specification: 1.6~2.4 kΩ (with throttle valve closed)
If resistance is not as specified, replace the throttle position sensor.
Connect throttle position sensor connector.

Fig 2: Testing Throttle Position Sensor Resistance
Courtesy of KIA MOTORS AMERICA, INC.