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538 RWHP, LS motor, RX7 body
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Besides sensing the temperature for the guages, do these have have any data input in the engine, or other component functions?

For example, does coolant temperature affect fan/ac switches, or oil temp input to pcm?
 

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538 RWHP, LS motor, RX7 body
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177 Posts
Where's the sensor(s) for the radiator fan?

Why and how is the AC tied to the cooling system?

I'm trying to learn too.
 

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538 RWHP, LS motor, RX7 body
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177 Posts
Above is Too generic unless it applies to gen5 TC.

How does the pentastar do it? What sensors and where are they? Lots of posts about engine temps, fan speeds, and AC coming on off
 

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538 RWHP, LS motor, RX7 body
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177 Posts
How is the radiator fan controlled to come on/off, and then high or low speed?

Is it directly from ECT, or from pcm sending control input to the fan?

What causes AC to stop that is related to the cooling system?
 
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