Air conditioning in a 240sx with an LS1 swap. The complete post.

The most frequent questions I get are about my air conditioning setup. I’ve had it working for almost a year and have finally put everything together in one big post. Most everything else about these swaps is now taken care of with swap kits. The air conditioning is a bit harder due to the fittings…

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LS1 A/C Installation pictures

The LS1 A/C system is pretty easy to get working in a 240SX. The only real issue is the fact that Nissan used special fittings going into the evaporator under the dash. I took the old Nissan lines and cut them off. I bought some low temp brazing rod and attached standard A/C bead lock…

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97 240SX with F-body LS1 Air Conditioning Wiring

I’ve recently completed my fully functional air conditioning system. I am using the factory LS1 ECU and sensors to control the system.  Wiring the LS1 side is easy. The Nissan dash wiring took a bit to figure out. Here is the final diagram of how I have it wired. The A/C button on the dash…

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