94 2.3 a/c rpm relay

[wr250rdr]

I know on my old s10 there was a relay that when you kicked on the ac the rpm would increase slightly to account for the extra drag on the system.
Now on my ranger when I kick on the ac it drops approximately 400 rpm at idle. Is there a relay on these trucks to accomplish the same goal or is it vacuum operated? If its a relay anyone know the location or number in the fuse box? I'm a few hundred miles away from home and my Haynes manual

 

[wr250rdr]

I just looked in the fuse box and can see the wot relay but I don't see a control relay

 

[Charles (in GA)]

The computer senses the air on and bumps the idle up with the IAC. Thats it. If your idle is not bumping up then you may have a dirty, stuck, burned up Idle Air Control.

Charles

 

[wr250rdr]

I just cleaned the idle air control valve, so is this an indication that it is bad? The symptoms the truck presented with was surging idle, while stationary in neutral. Serving from ~900 to 650. Cleaning the icv fixed this issue. So is it possible that part of the valve is working correctly while one isn't?