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  1. #1
    New Member
    Join Date
    Nov 2011
    Location
    Mississippi
    Posts
    9
    Corvette(s)
    1982 Crossfire Corvette

    Default Battery disconnect switch?

    Hi again guys!
    Put an 84 ecm i the ole 82 and it runs great. Been driving it a little, and it has done great. Got another question now.
    Something is draining the battery, like full discharge after sitting a week. Is it going to hurt the ecm if I put a disconnect switch on the battery? The ecm has factory settings, and I know it will be just like resetting it every time, just want to make sure I'm not about to mess something up. Just havent got time at the moment to track down whats drawing it down so.
    Thanks for all yalls help on the last problem, it is appreciated.

  2. #2
    Moderator bill81vette's Avatar
    Join Date
    Jan 2004
    Location
    Troy,NY
    Posts
    4,841
    Corvette(s)
    1981 dark blue metallic

    Default

    In a word,No.It will not hurt your ecm to put a disconnect in.
    most of us in the older vettes have them....
    Bill and Gail...save the wave
    NCRS member 42415
    1981 St.Louis car #2735
    all matching numbers

    born Sept 18,1980
    Cruisefest 2008
    Cruisefestous 2009
    Cruisefest 2010
    Cruisefest 2011
    Cruisefest2012



    Without Trucks......
    You would be Hungry,Homeless and Naked!!!!!!



  3. #3
    - Online
    Technical Writer for Internet & Print Media
    Join Date
    Jan 2001
    Location
    Southern California
    Posts
    6,510
    Corvette(s)
    71 95 04 12

    Default

    I think, even with an 81, each time you disconnect the battery you'll erase any fault codes which are stored and it will erase any fuel trim data which may have been "learned".

  4. #4
    New Member
    Join Date
    Jun 2011
    Location
    Buhl, idaho
    Posts
    5
    Corvette(s)
    1982 crossfire

    Default ECM 82 or 84 ECM?

    Quote Originally Posted by jrnorton4 View Post
    Hi again guys!
    Put an 84 ecm i the ole 82 and it runs great. Been driving it a little, and it has done great. Got another question now.
    Something is draining the battery, like full discharge after sitting a week. Is it going to hurt the ecm if I put a disconnect switch on the battery? The ecm has factory settings, and I know it will be just like resetting it every time, just want to make sure I'm not about to mess something up. Just havent got time at the moment to track down whats drawing it down so.
    Thanks for all yalls help on the last problem, it is appreciated.
    Was th ECM plug and play between years?

  5. #5
    New Member
    Join Date
    Nov 2011
    Location
    Mississippi
    Posts
    9
    Corvette(s)
    1982 Crossfire Corvette

    Default

    Quote Originally Posted by garyhagler View Post
    Was th ECM plug and play between years?
    Yes, mine was. Plugged it in, cranked and ran first hit.

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