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SUBJECT:
2.5L/2.7L (Delta) Engine Hesitation / MIL Illumination / P0123
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 (V-6) 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.
AFFECTED VEHICLE RANGE:
2001-2006 Optima (MS) equipped with 2.5L / 2.7 (V-6) Delta Engine: (10/01/2000 ~ 8/31/2005)
2005-2007 Sportage (KM) equipped with 2.7L (V-6) Delta Engine: (10/28/2004~05/18/2007)
| Part Name | Part Number | |
|---|---|---|
| Throttle position Sensor | previous | New |
| 35170-37100 | 35170-37100FFF  | |
| Idle Speed Control Actuator gasket | 35156-33271 | |
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