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PCM/O2 Sensor - MIL ON/DTC P0133 Stored

BULLETIN NO.: 00-T-02B

ISSUE DATE: March, 2000

CATEGORY TYPE: Engine-01

CATEGORY: Emission Controls

CORPORATION NO.: 00-06-04-001B

SUBJECT:
(MIL) SERVICE ENGINE SOON Telltale On with DTC P0133 - 02S SLOW
RESPONSE SENSOR 1 (Install PCM Calibration, if Necessary, and Install
Oxygen Sensor)

Due to the release of updated PCM calibrations listed under Correction, this bulletin is being revised and supersedes bulletin OO-T-02A, which should be discarded.

MODELS AFFECTED:
2000 Saturn S-Series vehicles

CONDITION:
Some customers may experience a SERVICE ENGINE SOON telltale On with a DTC P0133 - 02S SLOW RESPONSE SENSOR 1.

CAUSE:
The response times (Lean to Rich, Rich to Lean) of a normally operating oxygen sensor may exceed the values set within the current powertrain control module (PCM) calibration or the oxygen sensor may be contaminated.

CORRECTION:

1. Using a Scan tool, check the PCM calibration ID. Refer to the PCM Calibrations table in this bulletin.

^ If DTC P0133 - Updated Calibration is installed, proceed to step 2.

^ If DTC P0133 - Updated Calibration is not installed, install new calibration and proceed to step 2. Refer to "Service Programming System (SPS)" in the Saturn Service Stall System (SSS) User Guide for reprogramming procedures.

2. Install new oxygen sensor. For oxygen sensor removal and installation procedures, refer to "Oxygen Sensor 1 (02S-1)" in the Engine/Emission Control section of the 2000 S-Series Engine Service Manual.





PCM CALIBRATIONS (CALIBRATION ID)





PARTS REQUIREMENTS:





CLAIM INFORMATION:

To receive credit for this repair during the warranty coverage period, submit a claim through the Saturn Dealer System as follows:

When the oxygen sensor is replaced and the PCM is reprogrammed, the failed labor operation J6372 Replace Oxygen Sensor must be claimed with labor operation J6355 Reprogram EB Prom submitted as a related line.

IMPORTANT:
Refer to 1998-2000 S-Series Labor Time Guide for repairs not listed above.





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