CALI89PU22RE

I have ??'s about vsv on m 1989 22re 4x4 CALIFORNIA.

I have 3 mounted to a bracket that sits atop my valve cover.
part #'s: 90910-12084
90910-12085
90910-12086
I have done some research and starred at FSM until crosseyed and this is what i THINK i know: one is for the pair valve(the one w/ the check valve)
one is for the EGR valve
one is for the fuel pressure regulator (the one 2wd models do not have)

Now my question is: Where the heck is the one for the A/C?
i have a solenoid looking thing mounted to the passenger side fire wall that has two vacuum hoses attached that come from the idle up valve on the driver side of the plentum (the gold/bronze thing that has the whit screw on top; also seems to work w/ the p/s pump as well)
Is this a replacement for the A/C vsv for my year 22re (1989 california edition)??? What is it?
Where is the A/C vsv if not??
Am i right about what i THINK i know??
Finally is there a vsv for the p/s pump like 4crawler says?? mine seems to be connected to the idle up valve w/o a vsv. FSM does not show a vsv in the circuit for p/s pump.
ALSO SHOULD MENTION ONLY FSM ONLINE I COULD FIND WAS FOR A 1993 BUT OT LOOKED SO FAMILIAR. LINK: personal.utulsa.edu/~nathan-buchanan/93fsm/engine.html
PLEASE HELP A HOMIE OUT

abecedarian

A/C idle up VSV:


The power steering does not use a VSV as the pressure in the system when you turn the steering actuates the valve on the PS pump thus is supposed to raise the idle.

Can you get a pic of the one on the firewall? My 88 has nothing like that- they're all on the valve cover.

XtraSlow_XtraCab

The VSV you speak of (passenger firewall to idle-up valve on plenum) sounds correct supposing the vacuum is correct. The only way to know for sure is to unplug it and test for power at the plug in relation to the A/C power button on the dash.

It seems that whomever installs the A/C in these things (be it Toyota or an outsourced dealership-partnered A/C garage in the U.S.) likes to move these VSV's around. On my 84 it was passenger side, but on my 87 EFI it is valve cover mounted next to another VSV for the FPR (like shown in ab's above photo).

CALI89PU22RE

Thank you for the reply!!
The one on the fire wall looks nothing like the other 3 vsv on the valve cover. Its bronze/gold and grounds out like an inch away at the fire wall. Its more of o small chubby cylinder. Is it safe to assume the 93 fsm is similar enough to my 89. And how come I cannot find a 89 pu specific fsm.

CALI89PU22RE

Also thank you 4crawler for the awesome documentation with the pics to boot! Sorry I should have re read before quoting you.
So just plug all vacuum line ports that are associated w/ the p/s pump and call it good?

Also if I eliminate the a/c components completely as well as the p/s pump can I just remove the idle up valve and cap the plentum?
Thank you!

CALI89PU22RE

Ok so here is what I know I know: One is for the pair valve (the one w/ the check)
One is for the fuel pressure egulator
One is for the egr and egr modulator

I figured this out w/ ceertainty after physically tracing every vacuum hose that comes from the hard line vacuum manifold to where ever it goes.

I left my notes at home so i cant say which part # vsv is which fuction but i can as soon as i get home if anyone needs info.

Also according to the fsm a/c diagrams that small chubby solenoid looking thing mounted to the passenger side firewll w/ the vacuum hoses going to the idle up valve is most likely the vsv for the a/c but it just looks way diff than the other three. the only thing that distinguishes it as part of the a/c system on the fsm diagram is the vacuum hoses going the actuator.