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Thread: Resetting KAM "Keep Alive Memory" when doing mods to your Ford

  1. #61
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    Re: Resetting KAM "Keep Alive Memory" when doing mods to your Ford

    Quote Originally Posted by Birdman View Post
    It is very important that anyone who loads in a new calibration file, fuel pump, MAF Sensor or throttle body (no matter what TB) resets the "keep alive memory".. especially but not limitted to the 2010 -2011's

    resetting "KAM" in these cars means first disconnecting the negative battery cable then turn on the head light switch. Do this for at least 20 minutes with the head lights turned on

    (head lights on because the power that is stored in the PCM goes to the head lights)

    Then turn head lights off after 20 minutes and reconnect negative cable. start car, do not touch gas pedal or turn steering wheel and make sure the A/C and heat is off and let the car idle for at least 2 minutes.. an erratic idle is not abnormal when doing this procedure seeing as how the car is searching for an idle. After the car learns its idle it should be fine moving forward.

    Does it do the same thing when you disconnect the battery for a full day?

    How long does a car's tune take to relearn after doing this?

    Mine was a little freaky as far as idle and idle sticking/revving up after doing this for probably the first 1/2 hour.



    .

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    Re: Resetting KAM "Keep Alive Memory" when doing mods to your Ford

    I did forget to let it idle.

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    Birthday Boy Gr8snkbite's Avatar
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    Re: Resetting KAM "Keep Alive Memory" when doing mods to your Ford

    Quote Originally Posted by Tommy Gun View Post
    I did forget to let it idle.
    Putz
    Failure is simply the opportunity to begin again more intelligently....

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    Re: Resetting KAM "Keep Alive Memory" when doing mods to your Ford

    Quote Originally Posted by Gr8snkbite View Post
    Putz
    It's been a while since I have done anything to the car.

    Probably a good year.

    Been messin w the other car.

    I still have a larger IC tank from Orfstock '10 to install.

    .

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    Re: Resetting KAM "Keep Alive Memory" when doing mods to your Ford

    Oh, and thanks for answering my question.

    .

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    Re: Resetting KAM "Keep Alive Memory" when doing mods to your Ford

    Quote Originally Posted by Tommy Gun View Post
    Does it do the same thing when you disconnect the battery for a full day?
    I'm not sure if the power in the PCM will drain completly in 24hrs but it might...

    How long does a car's tune take to relearn after doing this?
    It depends on how different the new tune is to the one it replaced, the more changes made the more time it might take to adjust.

    Mine was a little freaky as far as idle and idle sticking/revving up after doing this for probably the first 1/2 hour.
    You have to let it idle a bit for it to adjust and it is even better if you cycle the key a few times (I.E. start it, let it run for a minute then shut it off then restart)

    .
    Then take it out and drive it easy for a while before getting into it like you "normally" do It should not take too long at all after that if you follow these steps.

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    Re: Resetting KAM "Keep Alive Memory" when doing mods to your Ford

    Some of what has been posted is not entirely accurate and there is a much faster method to clear the KAM (Keep Alive Memory).
    The KAM can be reset using a capable scan tool in a few seconds. If you don't have a capable scan tool disconnecting the PCM (computer) for 10 seconds will also work. Another method is to remove the positive battery cable and connect a jumper to the positive battery cable end to ground for 10 seconds.
    If you leave the battery disconnected for a long enough period it will reset the KAM provided the back-up power supply is discharged. The backup power supply is mainly used for the air bags, but it will feed other modules for a period of time also.
    It should also be noted that anytime you load a new tune into the PCM the KAM is reset also.
    It normally takes about 50 to 100 miles for the PCM's adaptive strategy to relearn. When you 1st start the car after resetting the KAM you should let it idle a couple minutes with everything turned of in park/neutral. Then turn the a/c on for a few mins, and after that put the vehicle in gear for a few mins if you've got an auto trans. When your done relearning the idle strategy, drive the vehicle like you normally would. I do not recommend driving it in a manner out of the ordinary at this time.
    BigB427

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    Re: Resetting KAM "Keep Alive Memory" when doing mods to your Ford

    I better redo this.

    The only problem is not having someone who can drive it normal.

    .

  9. #69
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    Re: Resetting KAM "Keep Alive Memory" when doing mods to your Ford

    Quote Originally Posted by Birdman View Post
    Then take it out and drive it easy for a while before getting into it like you "normally" do It should not take too long at all after that if you follow these steps.

    In your red quotes you mention adding a "different" tune.

    I did not use a different tune, I was just trying to clear things so I could get the fuel low gauge to try and work correctly.

    .

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    Re: Resetting KAM "Keep Alive Memory" when doing mods to your Ford

    Quote Originally Posted by bigb427 View Post
    Some of what has been posted is not entirely accurate and there is a much faster method to clear the KAM (Keep Alive Memory).
    The KAM can be reset using a capable scan tool in a few seconds. If you don't have a capable scan tool disconnecting the PCM (computer) for 10 seconds will also work. Another method is to remove the positive battery cable and connect a jumper to the positive battery cable end to ground for 10 seconds.
    If you leave the battery disconnected for a long enough period it will reset the KAM provided the back-up power supply is discharged. The backup power supply is mainly used for the air bags, but it will feed other modules for a period of time also.
    It should also be noted that anytime you load a new tune into the PCM the KAM is reset also.
    It normally takes about 50 to 100 miles for the PCM's adaptive strategy to relearn. When you 1st start the car after resetting the KAM you should let it idle a couple minutes with everything turned of in park/neutral. Then turn the a/c on for a few mins, and after that put the vehicle in gear for a few mins if you've got an auto trans. When your done relearning the idle strategy, drive the vehicle like you normally would. I do not recommend driving it in a manner out of the ordinary at this time.
    Thank for your input.

    If all you said is accurate, perhaps it should be incorporated in the first post here?

    .

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