Engine Controls - MIL ON/DTC's P0171/P0174 Stored

08-043

July 22, 2011

Applies To:
2007-08 TL Type-S - ALL

MIL Comes On With DTC P0171 or P0174

(Supercedes 08-043, dated October 3, 2008, to update the information marked by black bars).





REVISION SUMMARY

SYMPTOM

The MIL is on with DTC P0171 (rear bank [bank 1] fuel system too lean) or DTC P0174 (front bank [bank 2] fuel system too lean).

PROBABLE CAUSE

The PCM misinterprets inputs as a lean condition.

CORRECTIVE ACTION

Update the PGM-FI software with the HDS.

SOFTWARE INFORMATION

HDS Software Version: 2.015.018 Sept 2008 (blue) or later.

Control Module (CM) Update:

Application Version V6.13.09 or later.
Database Update 01-SEPT-2008 or later.

NOTE:
If you use an earlier HDS software version, the HDS may incorrectly indicate that the vehicle does not need an update when it actually does.





The updated PGM-FI software program IDs and P/Ns are shown. If this, or a later program ID, is the Current Program ID displayed during the update, the software for this service bulletin is already installed.





WARRANTY CLAIM INFORMATION

REPAIR PROCEDURE

Update the PGM-FI software with the HDS. Refer to Service Bulletin 01-026, Updating Control Units/Modules.





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