Quote:
Originally Posted by MDPotter
Okay, I'll bite. How exactly does the transducer function in terms of fan trigger?TA and I developed a diagram to work with the trinary switch so that when the line pressure reached its high setpoint, it would trigger both fans to run full speed. It's essentially setup to where Vintage Air stands alone from the PCM in terms of controlling the fans.
A few questions:
-Does this transducer provide a ground or some sort of signal when the AC is on?
-Or just when the line pressure reaches its high setpoint?
-Does this transducer signal get sent to the PCM instead of the fuse block that controls the fans? If it goes to the PCM, I'm assuming it takes over control of the fans?
I'd like to see a wiring diagram/controls sequence of this. I'll have to do some research.
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From my understanding(could be wrong here) the transducer is pressure based. So it constantly monitors the A/C pressure and based on that(signaling to PCM) it controls the idle and fans. Then the binary switch is strictly used for the compressor shut-off at high pressure threshold.
It works in conjunction with the PCM's other fan controls. Basically allowing the PCM to control fans based on coolant temp AND A/C pressure.
Yeah man, it's nerve racking I never found this during all the research we were doing on this. Months of researching, and several days worth of wiring truck and building diagrams...
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