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Thread: TSB: Rich Air/Fuel Ratio at High Ambient Temperatures

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    TSB: Rich Air/Fuel Ratio at High Ambient Temperatures

    TSB: Rich Air/Fuel Ratio at High Ambient Temperatures

    Quote Originally Posted by NHTSA | March 17, 2015
    MANUFACTURER COMMUNICATION NUMBER: TSB-15-13-001
    Components: ELECTRICAL SYSTEM

    NHTSA ID Number: 10098761

    Manufacturer Communication Number: TSB-15-13-001

    Summary
    THIS TECHNICAL SERVICE BULLETIN INSTRUCTS DEALERS TO REPROGRAM THE ECM WITH NEW SOFTWARE THAT OPTIMIZES THE AIR FUEL RATIO, IF DUE TO A RICH AIR FUEL RATIO, THE AFFECTED VEHICLES EXPERIENCE ENGINE STALLING AT LOW ENGINE SPEED, JUST PRIOR TO STOPPING OR DURING IDLING, AND WHEN OPERATED IN HIGH AMBIENT TEMPERATURE CONDITIONS.

    2 Affected Products
    MAKE MODEL YEAR
    MITSUBISHI MIRAGE 2014-2015

    1 Associated Document
    Service Bulletin Document
    SB-10098761-0335.pdf 1779.506KB
    Interesting note found at step one:
    Check the underside of the hood to verify there is no "Authorized Modification" label (see page 11 for example) previously installed to indicate this reprogramming has already been completed. If a label is present and the "ROM ID#" on the label matches the "New S/W Part No." in the table above, the ECM is at the latest level and reprogramming is not necessary. Conduct normal diagnosis for the described condition.
    Now I'm curious to see if I have this label...


    Attached Images Attached Images

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)


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    Quote Originally Posted by NHTSA | August 1, 2015
    MANUFACTURER COMMUNICATION NUMBER: TSB-15-13-001
    Components: ENGINE
    NHTSA ID Number: 10057904
    Manufacturer Communication Number: TSB-15-13-001

    Summary
    MITSUBISHI 2014-2015 MIRAGE: TECHNICAL SERVICE INFORMATION REGARDING LOW ENGINE SPEED, HIGH AMBIENT TEMPERATURE DUE TO A RICH AIR FUEL RATIO. *LJ UPDATED 9/10/15. *PE UPDATED 12/2/15. *PE

    2 Affected Products
    MAKE MODEL YEAR
    MITSUBISHI MIRAGE 2014-2015

    3 Associated Documents
    Service Bulletin Document
    SB-10057904-1731.pdf 614.287KB
    Service Bulletin Document
    SB-10057904-4872.pdf 497.066KB
    Service Bulletin Document
    SB-10057904-8844.pdf 545.358KB


    SB-10057904-4872.pdf 497.066KB
    TSB−15−13−001
    SUBJECT:ENGINE STALL (LOW ENGINE SPEED, HIGH AMBIENT TEMPERATURE)

    PURPOSE Due to a rich air fuel ratio, affected vehicles may experience engine stalling at low engine speed, just prior to stopping or during idling, and when operated in high ambient temperature conditions. If this condition were to occur, a stalled engine can immediately be restarted. This TSB instructs dealers to reprogram the ECM with new software that optimizes the air fuel ratio.

    AFFECTED VEHICLES 2014 − 2015 Mirage vehicles equipped with a CVT and built before January 19, 2015



    SB-10057904-1731.pdf 614.287KB
    TSB−15−13−001REV
    SUBJECT:ENGINE STALL/PCV HOSE DISCONNECTION (LOW ENGINE SPEED, HIGH AMBIENT TEMPERATURE)

    This bulletin supercedes TSB−15−13−001, issued March, 2015, to add PCV hose disconnection details. Revisions are italicized and indicated by ◀

    PURPOSE Due to a rich air fuel ratio, affected vehicles may experience engine stalling at low engine speed, just prior to stopping or during idling, when operated in high ambient temperature conditions, which may lead to PCV hose disconnection. If this condition were to occur, a stalled engine can immediately be restarted.This TSB instructs dealers to reprogram the ECM with new software that optimizes the air fuel ratio.

    AFFECTED VEHICLES 2014 − 2015 Mirage vehicles equipped with a CVT and built before January 19, 2015



    SB-10057904-8844.pdf 545.358KB
    TSB−15−13−001REVII
    SUBJECT:ENGINE STALL/PCV HOSE DISCONNECTION (LOW ENGINE SPEED, HIGH AMBIENT TEMPERATURE)

    This bulletin supercedes TSB−15−13−001REV, issued July, 2015, to add a more detailed illustration of PCV hose connection, and update Warranty labor time. Revisions are italicized and indicated by ◀

    PURPOSE Due to a rich air fuel ratio, affected vehicles may experience engine stalling at low engine speed, just prior to stopping or during idling, when operated in high ambient temperature conditions, which may lead to PCV hose disconnection. If this condition were to occur, a stalled engine can immediately be restarted. This TSB instructs dealers to reprogram the ECM with new software that optimizes the air fuel ratio.

    AFFECTED VEHICLES 2014 − 2015 Mirage vehicles equipped with a CVT and built before January 19, 2015
    Attached Images Attached Images
    Last edited by Eggman; 11-29-2019 at 12:46 PM.

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)


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    Last edited by Eggman; 11-29-2019 at 12:47 PM.

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)


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    Last edited by Eggman; 11-29-2019 at 12:47 PM.

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)


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    Last edited by Eggman; 11-29-2019 at 12:48 PM.

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)


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    Last edited by Eggman; 11-29-2019 at 12:48 PM.

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)


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    Last edited by Eggman; 11-29-2019 at 12:48 PM.

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)


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        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)


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        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)


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        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)


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