Engine Control - Engine Stall/Hesitation After Hot Start

Discussion in '2007' started by JustROLLIN, Jan 21, 2009.

  1. JustROLLIN

    JustROLLIN Guest

    TSB: 01-008/07

    2006-2007 MAZDA3 (EXCEPT CA SPEC & MAZDASPEED3) - ENGINE STALL AND HESITATION AFTER START-UP UNDER HIGH AMBIENT TEMPERATURE

    APPLICABLE MODEL(S)/VINS
    2006-2007 Mazda3 (except CA spec and Mazdaspeed3) vehicles with VINs lower than JM1BK**** ** 696694 (produced before January 1, 2007)

    DESCRIPTION

    Some vehicles may experience the following symptoms due to improper PCM software:

    1. The engine stalls when depressing the accelerator pedal slightly, then releasing it with the A/C on.

    2. The engine hesitates when doing a quick take-off after start-up with a high ambient temperature.


    Customers having this concern should have their vehicle repaired using the following repair procedure.

    REPAIR PROCEDURE

    1. Reboot the IDS to clear memory before reprogramming.

    2. Using IDS 46.6 or later software, reprogram the PCM to the latest calibration (refer to "Calibration Information" table) by following the "Module Reprogramming" procedure.

    NOTE: ^ Always update the PDS/IDS tool first, then follow on-screen instructions to download the needed calibration file for PCM reprogramming.

    ^ It is not necessary to remove any fuses or relays during PCM reprogramming when the IDS screen prompts you to do so. You may accidentally stop power to one of the PCM terminals and cause the PCM to be blanked, or you may receive error messages during the IDS reprogramming procedure.

    ^ IDS shows the calibration part numbers after programming the PCM.

    ^ Please be aware that PCM calibration part numbers and file names listed in any Service Bulletin may change due to future releases of IDS software, and additional revisions made to those calibrations for service related concerns.

    ^ When reprogramming a PCM, IDS will always display the "latest" calibration P/N available for that vehicle. If any calibration has been revised/updated to contain new information for a new service concern/issue, it will also contain all previously released calibrations.

    ^ When performing this procedure, we recommend that a battery charger be installed on the vehicle battery and turned ON to a maximum charge of no more than 20 AMPS to keep the vehicle battery up to capacity. If you exceed 20 AMPS, it could damage the VCM.


    3. After performing the PCM reprogramming procedure, verify the repair by starting the engine and making sure there are no MIL illumination or abnormal warning lights present.

    NOTE: ^ If any DTCs should remain after performing DTC erase, diagnose the DTCs according to the appropriate Troubleshooting section of the Workshop Manual.

    ^ After PCM reprogramming, it is no longer necessary to road test the vehicle to "relearn" KAM (Keep Alive Memory).

    4. Fill out an "Authorized Modification" label (P/N 9999-95-AMDC-97) with the new PCM calibration information, your dealer code, and today's date.

    5. Place the "Authorized Modification" label on the A-pillar below the tear tag in the driver door jamb. The "Authorized Modification" label will inform technicians of the PCM calibration change if future repairs are necessary.
     

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