Vacuum routing

[87PoS]

Hi everyone.
Just joined up.
Anyway, just got a butchered 87 GN and like everyone else, I am trying to figure the damn car out.

I got a Vacuum Diagram from GNTTYPE.ORG. It says for an 87 GN.

http://www.gnttype.org/techarea/engine/vacdiags/vac_federal.jpg

Anyway, it doesn't show if there's a line that goes to the MAP Sensor looking thing on the firewall. My car has a line that goes from a T splitter to the MAP. So far I've been unable to figure it out. Any links to a better PIC or help would be greatly appreciated.

Thx

 

[87PoS]

.

 

[TurboDave]

Yes it does. It's the one on the photo labeled "to boost gauge sensor" which is the map looking thing.

 

[scottyb]

There's a chance the t splitter was added by the previous owner to run a line to an aftermarket boost gauge.

 

[Paul Clark]

"Borrowing" from this thread.
I've got 2 vac. lines on the cruise control.
Is this right?
Maybe I've got the wrong one?
Thanks
Paul

 

[scottyb]

On the cruise module on the driver inner fender? Yes. One line is for vacuum - routed to the vac block. The other (larger one) goes to the switch at the brake pedal to release vacuum and release the cruise - fail safe in case the electronics fail and don't turn it off for you.

 

[87PoS]

Thanks guys, I added to my diagram so I don't forget in the future.

But one more question while I'm here. The Vacuum block is SUCKING the air? I just want to make sure the previous owner didn't get any of the check valves the wrong way. It's been pouring rain last 2-3 days so I really don't have anywhere to play with it to much or I'd just pull the lines off myself and see.