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Plug a battery pack into lighter while changing battery?

Discussion in '348/355' started by vracer, Jul 16, 2014.

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  1. vracer

    vracer Formula 3

    Jun 23, 2014
    1,098
    NorCal
    Full Name:
    Richard
    #1 vracer, Jul 16, 2014
    I'm preemptively changing battery tomorrow that is a minimum of 3.5 years old. I'm assuming that the best way to keep middle aged electronics happy is to keep them juiced. Any counter thoughts?
    Thanx,
     
  2. Volair

    Volair Karting

    Apr 11, 2013
    241
    Carmel, Indiana
    Full Name:
    Bart
    #2 Volair, Jul 16, 2014
    Not necessary. You will have to reset the clock. That's about it.
     
  3. vvassallo

    vvassallo F1 Veteran

    Aug 4, 2006
    8,329
    Palos Verdes
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    Vince V
    #3 vvassallo, Jul 16, 2014
    No harm.
     
  4. bikz

    bikz Formula 3

    Mar 2, 2012
    1,043
    Malaysia
    #4 bikz, Jul 16, 2014
    well at least for the 348 2.7M i think you gotta start it up and not do anything for a good ten min till the fans kick in while the ecu is learning all the new parameters.....
     
  5. 97 Spider

    97 Spider Formula 3

    Dec 15, 2012
    2,241
    Texas
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    Brian
    #5 97 Spider, Jul 16, 2014
    Yes, any mass air flow injection system records it's fuel maps at idle and throughout out the rpm range under different loads and is contiuosly adjusting them and "learning" the best air fuel mixture for the load/throttle position/rpm etc. The only hard map that doesn't change is wide open throttle on most. When you kill power all the "learning" is lost and has to remap. Not a big deal but the car is not at it's best until some idle time and a good cruise.
     
  6. vracer

    vracer Formula 3

    Jun 23, 2014
    1,098
    NorCal
    Full Name:
    Richard
    #6 vracer, Jul 17, 2014
    Thanks, Guys. Stories of blown airbag ecus, etc. make me apprehensive.
     
  7. 97 Spider

    97 Spider Formula 3

    Dec 15, 2012
    2,241
    Texas
    Full Name:
    Brian
    #7 97 Spider, Jul 17, 2014
    I've heard of electric damage from jump starts but not powering down and back up. Heck it has a built in battery cut off switch.
     
  8. Dave rocks

    Dave rocks F1 World Champ
    BANNED

    Nov 23, 2012
    16,047
    Orchard Park, NY
    Full Name:
    Dave Lelonek
    #8 Dave rocks, Jul 17, 2014
    Shut the battery off before changing and all will be fine.
     

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