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Thread: 2015 firmeware update detuned?

  1. #11
    Amministratore Fiat500USA's Avatar
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    Here is some more info on the reflash

    NUMBER: 18-010-15 REV. AGROUP
    DATE: April 13, 2015

    SUBJECT:
    Flash:1.4L Diagnostic And System Improvements


    OVERVIEW:
    This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest
    software.


    MODELS:
    2014 - 2015 (FF) Fiat 500


    NOTE: This bulletin applies to vehicles built on or before February 14, 2015 (MDH
    0214XX) equipped with a 1.4L I4 Multiair 16V Engine (sales code EAB) or a
    1.4L I4 Multiair Turbo Engine (sales code EAF).

    SYMPTOM/CONDITION:
    The customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon
    further investigation the technician may find Diagnostic Trouble Codes (DTCs):
    P0141 Oxygen Sensor 1/2 Heater Performance.
    P061A Internal Control Module Torque Performance (2014 Vehicles only).
    Improved reverse lamp activation time (2015 auto trans only).
    **Improved cold weather starting, below -4 F (-20 C).**
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  2. #12
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    As an update: My car is completely normal now and is running full top. I can still tell that there is some learning but it's mostly done. I drove 2 hours to my friend's place and had 20-25 backfires for doing anything, even cruise control got a backfire lol. Then I stopped for some red bull and the car wouldn't back fire at all so that has happened before and is part of the learning process based on my logging.

  3. #13
    Senior Member Dwaynek's Avatar
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    Happened with my 2012 Abarth. They updated the firmware and it de tuned my car. Only way around it I installed a TMC piggyback box which brought it back and even more power!

  4. #14
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    I have a 2015 Fiat 500 Abarth Automatic.

    I had the TSB 18-010-15 and haven't really experienced any issues or major problems.

    I would like more details on Flash TCM per TSB 21-036-15 - I cant find the details to this anywhere.

    Anyone have Details for TSB 21-036-15 ?

    Thanks,

    Roy

  5. #15
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    Quote Originally Posted by My2012Fiat View Post
    I have a 2015 Fiat 500 Abarth Automatic.

    I had the TSB 18-010-15 and haven't really experienced any issues or major problems.

    I would like more details on Flash TCM per TSB 21-036-15 - I cant find the details to this anywhere.

    Anyone have Details for TSB 21-036-15 ?

    Thanks,

    Roy
    Sorry I didn't look this over up since I've got a manual but, Erica has been good at getting information for TSBs, also talk to your dealer.

  6. #16
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    Quote Originally Posted by doverosx View Post
    Sorry I didn't look this over up since I've got a manual but, Erica has been good at getting information for TSBs, also talk to your dealer.
    It would be nice if there was a place on the Forums for TSB's so that we can see the Changes as they become available and so we can make sure - Our Cars are current with Firmware Updates

  7. #17
    Amministratore Fiat500USA's Avatar
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    Quote Originally Posted by My2012Fiat View Post
    It would be nice if there was a place on the Forums for TSB's so that we can see the Changes as they become available and so we can make sure - Our Cars are current with Firmware Updates

    Welcome to the forum! There is a specific forum for technical discussions and bulletins: http://www.fiat500usaforum.com/forum...al-Discussions
    Here is the direct link to the TSB forum: http://www.fiat500usaforum.com/forum...ns-and-Recalls
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