Wiring A/C on an sr20?

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speedykurt
Posts: 32
Joined: Tue Jul 22, 2008 11:54 am

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Ok so i already know how to do the bracket super easy and what not right?But the problem is dont you need to splice part of the KA wiring harness into the SR harness to connect it to the commpressor/Condensor fan?Also what about the high and low pressure switch? Can you just not connect them and risk eating the commpressor? if not where do you splice them in?

Thanks (I know i ask too many questions lol)


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Hijacker
Posts: 14373
Joined: Wed Aug 13, 2003 4:57 am
Car: '92 240sx Convertible
'94 F-150
Location: Fredericksburg, VA

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You ask questions, but don't give enough info. What generation SR and what generation 240?

speedykurt
Posts: 32
Joined: Tue Jul 22, 2008 11:54 am

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Sorry im kinda new to the 240sx thing... im coming over from VW's lol but its a 1990 240sx with the s13 sr20det

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Hijacker
Posts: 14373
Joined: Wed Aug 13, 2003 4:57 am
Car: '92 240sx Convertible
'94 F-150
Location: Fredericksburg, VA

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make sure the blue/green and green/yellow wires at the chassis -> EFI plug are wired correctly (plugs beside battery)

The SR harness uses the green/yellow circuit to activate the a/c relay, which in turn energizes the blue/green circuit. the blue/green circuit turns the compressor on and idles the car up.


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