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Thread: inside menu of FANS desired coolant temp question..

  1. #1
    Tuner in Training
    Join Date
    Sep 2017
    Posts
    46

    Question inside menu of FANS desired coolant temp question..

    hello.
    cruze 1.6T
    Column axis 90 seems operation fan by coolant temp.
    what does column axis 105 do?
    i tried 0-100% nothing change on fan logic..
    fans.jpg
    Last edited by teamjin; 12-29-2018 at 11:53 PM.

  2. #2
    Potential Tuner
    Join Date
    Jul 2019
    Posts
    3

    Fan controls

    Quote Originally Posted by teamjin View Post
    hello.
    cruze 1.6T
    Column axis 90 seems operation fan by coolant temp.
    what does column axis 105 do?
    i tried 0-100% nothing change on fan logic..
    fans.jpg
    I finally figured out how the fans work on my 2006 Cobalt SS.
    CobaltFanSettings.jpg
    Fan 1 is my engine coolant fan, it switches on (1) when the engine temp is higher than ~205F (which is "Fan Desired" = 22).
    Fan 1 switches off (0) when the engine temp is lower than ~199F (which is "Fan Desired" = 12).

  3. #3
    Senior Tuner cobaltssoverbooster's Avatar
    Join Date
    Dec 2008
    Location
    Nevada
    Posts
    4,179
    what did your CTS read when you tried commanding values in the 105 column. 105 is 221 F. while its not the axis for true temp it may need to be exceeded by a fair amount in order to switch table rows. The other question is, do you have dual fans? from the duty cycle values it seems the primary fan could be run off the 90 row and then its more likely a second fan kicks on and further increases flow which is why the 105 has a lower duty cycle run.
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