they are the three lines that connect to the tb right? if so, which one is for the evap? left, middle or right? sorry for the newbie question.

i only know of 1 vacuum line that connects to the 2GNT throttle body. it's on the top, it's a line that goes to the passanger's side somewhere. i'm pretty sure it is for the EVAP system.

i went to look at it, and maybe i m looking at the wrong thing but i see a part of the throttle body where it splits into 3 tubes. one going into the egr sensor. it was also on the passenger side. one of the three also connects to a thin metal tube that goes over the valve cover and under the passenger side headlight and i lose it there. where that continues to, i don't know. the third hose is between the other 2 and that goes down towards the block. are those the vacuum lines?

Originally posted by AznKaos15
i went to look at it, and maybe i m looking at the wrong thing but i see a part of the throttle body where it splits into 3 tubes. one going into the egr sensor. it was also on the passenger side. one of the three also connects to a thin metal tube that goes over the valve cover and under the passenger side headlight and i lose it there. where that continues to, i don't know. the third hose is between the other 2 and that goes down towards the block. are those the vacuum lines?

That's not the throttle body, that's the intake manifold.

I'm not sure the order on that splitter, but they go to EGR solenoid, Cruise Control, and Brake Booster.

gotcha, just got carried away with this cel 31 that i wasn't thinking right. thanks

On my 1995, the three pronged vacuum tee goes to fuel pressure regulator, cruise control, and EGR solenoid. The large fitting on the right hand rear goes to the brake booster. The large fitting on the right hand front goes to the PCV valve. If you have a 1996+, you won't have the fuel pressure regulator line. You may have a vacuum cap instead. If you don't have cruise control, you may have a cap on that port too. the one vacuum line going to the TB is the EVAP line. That should lead to a hard line that leads down into the passenger fender area.

Corbin

'95 ESI-T
HRC+FMIC+ETC...



Gimme fuel...Gimme fire...Gimme that which I desire

thanks for the pic. explains a lot. i have a 97 gs, i have all three ports plugged. so does that mean i have a fuel pressure regulator? welli guess thats more parts to cause trouble. :( well i resetted the computer last night and tightened my gas cap. drove for about 100 miles and so far so good. maybe my gas cap was loose to start with cause i did fill gas yesterday, a couple of hours before the cel 31 came on. wish me luck. thanks for all your help people.