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Re: 1971 Stepside LS Build
The transducer is a sensor that sends voltage back to the ecm that corresponds with pressure in the ac system. The ecm converts this voltage to a pressure reading. You can setup the fans related to a pressure table within the ecm when tuning.
At least this is what I've looked at on my Gen 4.
I commented in a thread in the ls swap forum with some pictures of mine and some info on it.
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