Keeping A/C in my Aristo swap - need wiring help

[ifyouaint1sturlast]

So,
I have it all hooked up mechanically. I have new o-rings on everything, new dryer assembly, lines retrofit, everything.

As far as the wiring.. what needs to be done? I've searched and searched and it seems everyone has a difference of opinion. I thought I had bookmarked a page but I can't find it. Something about a single pin blue wire plug near the fuse box.. I can't remember though and I can't find it.

Any help would be appreciated. Thanks!

 

[IBoughtASupra]

Yeap, single pin to the clutch wire on the compressor. It is the original 7M clutch wire.

The A/C goes through the chassis harness on the MKIII.

 

[ifyouaint1sturlast]

Which pin? Any link to a thread? I know there's more to it

 

[IBoughtASupra]

Thats all I did on all swaps

You will have to look at the pinout and wire in the idle up for when the A/C kicks on.

 

[gurley0916]

Agreed thats how mine works. Nothing else to it.

 

[ifyouaint1sturlast]

Agreed thats how mine works. Nothing else to it.

Was more asking for specifics but it's okay Andy has been helping and I came across my old notes

 

[Satan]

I used someone's write-up for using the Aristo ECU's ACMG signal... Ended up jacking the ECU up and reconnected the wires going to the A/C amplifier. Same thing tho... wire/signal stays the same at the compressor. I'll take a look in a bit and see if I can get a pic and/or tell you which wire to connect at the compressor.

I'll try to find my notes/write-up, if you're interested in the ECU controlling the signal.

 

[ifyouaint1sturlast]

I used someone's write-up for using the Aristo ECU's ACMG signal... Ended up jacking the ECU up and reconnected the wires going to the A/C amplifier. Same thing tho... wire/signal stays the same at the compressor. I'll take a look in a bit and see if I can get a pic and/or tell you which wire to connect at the compressor.

I'll try to find my notes/write-up, if you're interested in the ECU controlling the signal.

Very interested, thank you!

 

[IBoughtASupra]

The wire that goes to the A/C compressor wire of the Aristo is the OLD 7M wire. Nothing else. You can wire in idle up by using the A/C amplifier since it puts out the voltage to the ECU.

 

[ifyouaint1sturlast]

This is what I have in my notes..

"4.) If you want to retain A/C you will need to connect the B-W wire coming from connector 'C' pin 5 to the single wire that originally went to the 7M A/C clutch (L), located on the driver side fender. It's a single pin female connector with two blue wires going in and one wire going out."

AND

"From A/C amplifier - "Idle Up" Blue/Red Connect to: A-34"

 

[IBoughtASupra]

Pin A34 is the "Amplifier" pin which raises idle when fed from the idle up pin of the MKIII amplifier.

 

[ifyouaint1sturlast]

Yes, that's what I have in my notes..

B1-11 -> A-34

So, that takes care of idle up. Then just connect the clutch wire on the compressor to the single pin connector that normally feeds the 7M compressor right?

 

[IBoughtASupra]

Yeap.