88 obs ls swap.

[Obs-LM7.5.3]

Has anoyone In here done an ls swap but kept all the a/c wires to run the factory R4 ac compressor. I already deleted all the tbi stuff. I'm just stuck on ac wires

[jcrumpley]

Yep, keep the ac wires. My ac is wired just like it was at the factory on my 92. I just added a relay to run the electric fan when the ac comes on.

[gagliano7]

Same here on my 1992

[Obs-LM7.5.3]

Thnx jcrumpley. Ok there's one wire from the ac to the PCM what do I do with that?

[Obs-LM7.5.3]

Ok I just found out that the wire from the ac to the PCM is the ac clutch signal

[jcrumpley]

You don't need to hook the ac to the pcm at all. That pcm wire is only used if you want the pcm to control the ac.

[88stepside]

You don't need to hook the ac to the pcm at all. That pcm wire is only used if you want the pcm to control the ac.

I ran the ac pcm wire so the LS1 fans would operate like stock.