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Thread: Switching to Electric fans......

  1. #1
    Potential Tuner
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    May 2006
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    Switching to Electric fans......

    and I have some questions.

    1.) What do I have to do to not get the CEL?

    2.) Is there a way to tap into the harness and have the ECM control the fans?

    Thanks for any help you guys can give!

  2. #2
    HP Tuners Support
    (foff667)
    Bill@HPTuners's Avatar
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    1.set the code to not be reported

    2. probably but I wouldnt know which ones to tell you to hook into.
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  3. #3
    Tuner in Training
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    Jul 2006
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    Pin 42, what kind of fans are they? nelson performance has a harness to use with LS1 fans and FAL fans. It was a 20. min operation and than just go into the fan controls and itl work. It was a VERY simple operation and the harness is about 90 bucks

  4. #4
    Took me longer than 20 minutes. I thought it could have had a better diagram for tapping into pin 42 on the PCM, but I eventually figured it out. It's been working very well for me. On my 03 5.3 truck, I can control what temps turn the fans off and on, but I can't control the 2 fans that came off an 05 silverado independently.

  5. #5
    Супер Модератор EC_Tune's Avatar
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    They may be run in series as the "low speed fan" to achive a low speed, and separately as high speed fans. At least that's how the Vettes do it...
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