what's this?????? - Toyota Nation Forum : Toyota Car and Truck Forums

Mike@Fidanza · 04-03-2006, 09:25 PM

i had this hooked up before i rebuilt the engine and now i can't figure out where the hell the vacuum lines conect to the engine.

what's is it? what's it purpose? & where do the hoses connect?

JekylandHyde · 04-03-2006, 09:34 PM

Not sure, but maybe it's teh A/C idle up valve:
http://mr2.noegruts.com/engine/engine04.jpg

http://mr2.noegruts.com/engine/engine01.jpg

JekylandHyde · 04-03-2006, 09:35 PM

BINGO:

http://www.mr2-tech.com/bgb/mechanic..._1543_0001.jpg

Mike@Fidanza · 04-03-2006, 09:36 PM

Quote:

Originally Posted by JekylandHyde

Not sure, but maybe it's teh A/C idle up valve:
http://mr2.noegruts.com/engine/engine04.jpg

http://mr2.noegruts.com/engine/engine01.jpg

hmmmmm.... those links didn't work for me!
is it necesary to have that hooked up if you don't have a/c?

JekylandHyde · 04-03-2006, 09:38 PM

COPY and PASTE the links to get them to work - do not CLICK them.

I posted a link to the BGB A/C info.
That is what that part is.

Mike@Fidanza · 04-03-2006, 09:40 PM

Quote:

Originally Posted by JekylandHyde

BINGO:

http://www.mr2-tech.com/bgb/mechanic..._1543_0001.jpg

ahhhhhh..... thank you!
but if i don't have a/c then that really isn't too functional, right!?!?

i'm just trying to figure out why it's not idling right... even when it's cold and i start the rpms drop down to around 800 then drop even lower and eventually stalls

Mike@Fidanza · 04-03-2006, 09:45 PM

i've checked every damn vacuum line possible.... everything checks out OK!
grrrr.... this is killin me!

JekylandHyde · 04-03-2006, 10:11 PM

I would check the 2 locations that the A/C VSV went to.
Check the line from the Idle Control Valve that breaks off to the A/C piece I just showed you.
The next question is where does the other end of that go? I'd guess under the throttlebody and that is where you are going to find your leak.

Mike@Fidanza · 04-03-2006, 10:18 PM

Quote:

Originally Posted by JekylandHyde

I would check the 2 locations that the A/C VSV went to.
Check the line from the Idle Control Valve that breaks off to the A/C piece I just showed you.
The next question is where does the other end of that go? I'd guess under the throttlebody and that is where you are going to find your leak.

yea i was just out looking at those hoses but never took a look under the throttle body! i'll put money on it that it's leaking there! haha!!! just because that was the only place i haven't checked!