Engine Controls - Low Power During Acceleration

07-057

July 21, 2011

Applies To:
2008 Accord L4 - From VIN 1HGCP2...8A000027 thru 1HGCP2...8A006073
- From VIN JHMCP2...8C000126 thru JHMCP2...8C015067

Low Power During Acceleration
(Supersedes 07-057, dated May 5, 2009, to revise the information marked by asterisks)

REVISION SUMMARY

* Under WARRANTY CLAIM INFORMATION, the flat rate time was changed because the MVCI updates control modules more efficiently.*

BACKGROUND

Some 2008 Accord L4 vehicles may experience an intermittent lack of power due to interference or noise on the knock sensor signal circuit. Interference or noise on this circuit can cause the PCM to retard the ignition timing, creating a decrease in engine power, usually during acceleration.

CORRECTIVE ACTION

Update the PGM-FI software with the HDS.

WARRANTY CLAIM INFORMATION

Operation Number: 1255A2

*Flat Rate Time: 0.2 hour*

Failed Part: P/N 37820-R42-A04

Defect Code: 03214

Skill Level: Repair Technician

SOFTWARE INFORMATION

HDS Software Version:
2.015.006 (July 2008) or later.





Control Module (CM) Update:
Application Version V6.13.04 or later
Database Update 10-JUL-2008 or later

NOTE:
To avoid an incorrect repair that would not be covered under warranty, use the software version listed above or a later version.





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

REPAIR PROCEDURE

Update the PGM-FI software with HDS. Refer to Service Bulletin 01-023, Updating Control Units/Modules.





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