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Thread: ls1 DBW swap w/0411 ecm elecctric fan and a/C question

  1. #1
    Tuner in Training
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    ls1 DBW swap w/0411 ecm elecctric fan and a/C question

    im swapping a ls1w/4l80e into my 98 gmc truck and I want to run electric fans and use the ecm ability to control the A/C system. I have a p01 ecm out of a 02 chevy avalanche. the ecm has all the options for electric fans and looks like all the stuff for the a/c control. can I use the settings from a corvette and turn all that stuff on? and would I use the corvette pinouts to wire in the sensor, and use the corvette pressure sensor?green truck ecm original 5.3 avelanche (do not write).hpt
    Last edited by Garyg; 01-29-2020 at 10:51 PM.

  2. #2
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    For the Electric fans, yes just use this diagram to connect them to the PCM.
    The AC, your going to want to use Trinary AC Pressure sensor from a Fbody i believe. But it will control the fans from the sensor information.

    Dont use a truck stock tune to go off of if you want to wire in the AC Pressure sensor. The corvette or camaro tune would work.
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  3. #3
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    so do I need to segment swap a corvette tune onto the avalanche ecm?

  4. #4
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    I'd use the 01-02 F-body calibration if you're planning on running a DBC throttle body. It'll be easy to do a segment swap on that OS.
    You can use the trinary pressure switch for the AC as RDF1 said.

  5. #5
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    segment swap, yes..but I would use the F-Body