SW20 A/C IDLE VSV

[gian_strabo]

Got the car back from being rebuilt and now when the AC turns on when idling, the idle drops below 500rpm and the car almost stalls.
No issues though if you are driving more than 20km/h or so.

The VSV seems to be missing one of the two hoses. The one from the VSV to the intake manifold is there.
The one from the VSV to the area where the turbo is (general area) is missing.
When the AC runs it makes a high velocity sucking noise.

The missing hose wouldn't be an issue if I could figure out where the hose is supposed to go to.
There isn't any vacuum line ends without a hose on them from the looks of it.

vsv mr2.png (127.45 KiB) Viewed 1311 times

On Partsouq there are diagrams showing the parts but no definitive place that the missing vacuum line from the VSV goes onto. Shown above.
Does anyone have a photo they can show where the AC VSV vacuum lines go from and to please?

[GDII]

I assume this is a GEN2 3SGTE from the 1989-1993 SW20?

If so there is too much unmetered air getting into the engine when the AC VSV switches on.

So you need to find the pipe/hose that comes from the intake pipe before the turbo and connect the in side of the AC VSV to it.
In the photo below it is the hose the that runs above the Distributor and to the left of the EGR pipe. You won't have an EGR pipe though.