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Thread: Wiring E67 ECM for PWM Fans on 2007 TBSS

  1. #1
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    Default Wiring E67 ECM for PWM Fans on 2007 TBSS

    OS: 12611938
    Cal: 12611937

    Hello all, new to the EFI live Gas side of things since until now all my experience has been on the Diesel side. I have a few questions about fan control.

    1) If table G0927 is changed to the "PWM Electric" setting, how exactly does that affect the system? Would there be a particular pin coming out of the PCM that would be used for actuating the fans?

    2) Is there a particular PWM fan controller that is preferable to use with the output from the PCM?

    Pardon if any of my information or understanding is incorrect, as I've said this is my first time playing around with EFI Live on the gas side. Just trying to figure out the most seamless way to integrate electric fans into my 2007 TBSS

  2. #2
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    EFILive does not have all of the tables and parameters needed to change from the fan clutch to efans on E38/E67s. You will need to purchase a patched file from someone or a shop may do it for free or a small fee. PCMofNC will patch your file even if you don't purchase a harness from them.

    I can send you some more info about TBSS efans, can you PM me?
    Last edited by ScarabEpic22; September 18th, 2018 at 04:29 AM.
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

  3. #3
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    Thats weird. As I said, I dont have any experience with the fan changes but why is the selection available in the tune but will not work if you change it?

  4. #4
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    [QUOTE= I can send you some more info about TBSS efans, can you PM me?[/QUOTE]

    Also, I shot you a message.

  5. #5
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    Quote Originally Posted by blades11b View Post
    Thats weird. As I said, I dont have any experience with the fan changes but why is the selection available in the tune but will not work if you change it?
    There are more parameters needed that are not available in EFILive's standard calibrations in order to make the change from fan clutch to efans.
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

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