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Engine Controls - MIL ON/DTC P0123 Set

Model: Optima [MS], Sportage [KM]

Group: Fuel System (14)

Number: KT2007112701

Date: Tuesday, November 27, 2007

Area: N. America

Subject:
2.5L/2.7L (Delta) Engine Hesitation/MIL Illumination/P0123
(Engine - 038)

Description








This bulletin provides information relating to an engine hesitation or the illumination of the Malfunction Indicator Lamp (MIL) for P0123 (Throttle Position Sensor/Switch "A" Circuit High Input).

Some 2001 - 2006 Optima (MS) produced between 10-07-2000 - 08-31-2005, equipped with the 2.5L or 2.7L (V-6) Delta Engine and some Sportage (KM) models produced between 10-28-2004 - 05-18-2007 equipped with the 2.7L Delta Engine are applicable for this bulletin. Improper throttle position sensor values may cause the engine to hesitate under loads or cause the illumination of the MIL. To correct for this condition, the throttle position sensor (TPS) has been improved.

Effective Vehicle Information

AFFECTED VEHICLE RANGE:
2001 - 2006 Optima (MS) equipped with 2.5L/2.7L (V-6) Delta Engine: (10/01/2000 - 8/31/2005)

2005 - 2007 Sportage (KM) equipped with 27L (V-6) Delta Engine: (10/28/2004 - 05/18/2007)

PARTS INFORMATION:





Parts Information

Service Procedure

Repair Procedure:





1. Turn the ignition key to the "OFF" position. Open the hood and remove the engine cover. Disconnect the VIS (Variable Induction System) connector and the injector connector if equipped.

2. Disconnect the idle speed control actuator (ISCA) connector and remove the two retaining bolts. Remove the ISCA and gasket.

3. Disconnect the throttle position sensor (TPS) connector and remove the two (2) mounting screws.





4. Install the new TPS sensor onto the throttle body and torque the two screws (1.5 - 2.5 Nm/13.2 - 21.6 in-lbs.) reconnect the TPS connector.





5. Install a new ISCA gasket and re-install the ISCA actuator. Torque the ISCA bolts (6 - 8 Nm/52.8 - 69.6 in-lb), reconnect the ISCA connector. Reconnect the VIS connector and the injector connector if equipped.

6. Reinstall the engine cover.





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