Optima & Magentis (Canadian) 2.4L

NOTE: Throttle Position (TP) sensor is adjustable only on Optima & Magentis (Canadian) and Sedona. Perform adjustment if necessary.

NOTE: A poorly functioning TP sensor may cause several driveability problems. For testing and functional check, See ENGINE SENSORS & SWITCHES in SYSTEM & COMPONENT TESTING article.

NOTE: Cleaning of the throttle body may be necessary before any adjustments are made.

Turn ignition switch off. While backprobing TP sensor 3-pin harness connector, connect a DVOM, set to volts; between TP sensor terminals No. 1 (Blue wire) and No. 3 (Black/White wire). See Fig 1 and Fig 2 . Turn ignition on. Do not start engine. Measure voltage with throttle in idle position. Voltage should be 300-900 millivolts. With throttle fully open, voltage should be 4.0-4.6 volts. If voltage is not as specified, loosen TP sensor mounting bolts and adjust by turning the TP sensor. Turning TP sensor clockwise increases output voltage. Make adjustments with throttle in idle position. See Fig 3. After adjustment, torque TP sensor mounting bolts to 14-22 INCH lbs. (1.5-2.5 N.m). If problem still exists, replace TP sensor and repeat test.

Fig 1: Testing Throttle Position Sensor Voltage (Optima & Magentis (Canadian) 2.4L)

Courtesy of KIA MOTORS AMERICA, INC.

Fig 2: Throttle Position Sensor Harness Side Connector (Optima & Magentis (Canadian) 2.4L)

Courtesy of KIA MOTORS AMERICA, INC.

Fig 3: Adjusting Throttle Position Sensor (Optima & Magentis (Canadian) 2.4L)

Courtesy of KIA MOTORS AMERICA, INC.