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Thread: Can I setup output for elec fan

  1. #1
    Junior Member
    Join Date
    Mar 2007
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    46

    Default Can I setup output for elec fan

    Can I use EFI live to turn an electric fan on and off?

    Im in a Hurry and have no time to search sorry to ask if its allready there
    1972 Chevy Blazer, Twin Turbo Duramax 6.6
    69 Maro TT 427 LSX, Wayne due Vett frnt sub,
    Lateral Dynamics 3 link rear, D 60,
    T56, 18X10' 18X12 Boze Forged Speedsters,
    13" wilwood 6 pot fronts 13" wilwood 4 pot rears,
    (all Still under construction)

  2. #2
    Senior Member
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    Oct 2005
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    Yes, with some limitations....
    2005 RCSB 2500HD GMC Sierra DURAMAX LLY
    1955 Chevy Truck 1st series, being restored
    2002 Mercedes C270 CDI

  3. #3
    Lifetime Member GMPX's Avatar
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    Apr 2003
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    13,148

    Default

    As Lennart said, with limitations, it would be crude but might do the job. Complete fan control is more complex that the calibrations available for the output control.
    Also, if you do hook it up, make sure you are switching the fan relay, not the fan directly or you will be up for a new ECM!.

    Cheers,
    Ross
    I no longer monitor the forum, please either post your question or create a support ticket.

  4. #4
    Lifetime Member killerbee's Avatar
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    Jan 2006
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    Assuming that you are removing the stock cooling fan (don't mean to be nosy )...don't plan on using the LLY to pull any significant loads if you go electric. FWIW
    Michael, Systems Engineer 04.5 D-max LLY, Phoenix, Arizona Email
    Custom Tuning Services
    DURAMAX/CUMMINS ECM's TCM's for sale, all years, 20% wholesale discount available
    EFILive's first VGT "Software Wastegate Tune"

  5. #5
    Senior Member
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    Oct 2005
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    I am thinking about running the 05+ GM Gasser fans. Never tow with my truck just race the streets with it. No Phoenix weather over here either!
    2005 RCSB 2500HD GMC Sierra DURAMAX LLY
    1955 Chevy Truck 1st series, being restored
    2002 Mercedes C270 CDI

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