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MIL Service Engine Soon Light On with DTC P0133 - O2S Slow Response Sensor 1

Subject:(MIL) SERVICE ENGINE SOON Light On with DTC P0133 - O2S SLOW RESPONSE SENSOR 1 (Install Calibration and Oxygen Sensor, If Necessary) Due to revisions under PARTS REQUIREMENTS, this bulletin supercedes bulletin 99-T-66, which should be discarded.

Models:1999 Saturn S-Series vehicles equipped with DOHC (LL0) engines, automatic transaxles (MP7) and federal emissions (NF2)



Condition

The affected vehicles may exhibit a SERVICE ENGINE SOON telltale On and a DTC P0133 - O2S SLOW RESPONSE SENSOR 1

Cause

The response times (Lean-to-Rich and/or Rich-to-Lean) of a normally operating oxygen sensor may exceed the values set within the current PCM calibration.

Correction

Refer to the Diagnostic Chart in this bulletin.

missing graphic

Refer to "Service Programming System (SPS)" in the Saturn Service Stall System (SSS) User Guide for reprogramming procedures.

For oxygen sensor removal and installation procedures refer to "Oxygen Sensor" in the Front Oxygen Sensor (O2S) Circuit section of the 98-99 Powertrain Service Manual.

PCM CALIBRATIONS (CALIBRATION ID)

1999 Model Year

Emissions

Engine

Transaxle

Calibration ID DTC P0133

Federal

(Perf (LL0)

Auto (MP7)

2101511/21025115

Parts Requirements

21025117 - Sensor Asm - Oxy

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 EE Prom is reprogrammed, the failed labor operation J6372 - Replace Oxygen Sensor must be claimed with labor operation J6355 - Reprogram EE Prom submitted as related line.

Case Type

Description

Labor Operation Code

Time

VW

EE PROM reprogramming

J6355

0.3 hrs

VW

SENSOR, OXYGEN - REPLACE

J6372

0.2 hrs

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