Boost guage stopped working

[phxsvt]

I suspected I had a leak or the vac. tube completely lost connection and experiance no boost guage movement on the gauge.
I started at the blower and working my way to the glovebox and under the dash. Tubing is in great condition, no leaks and a nice hissing sound when I take every connection off. I stumbled onto this relay looking guy and wonder if he is the culprit. There is suction before and after the "relay" I shot it for power and didnt get anything. Does this only energize at WOT when theres enough boost? Also what is it?

 

[phxsvt]

any techies in the house??

 

[CRAZY-SNAKE]

check behind your cluster the boost gauge on the dash is manuel it has a vacum line on the instiment cluster

 

[Teal Terminator]

I'm having the same problem except my after market gauge is still picking up vac?! I think I may have mixed up a vac line though when working on the car over the past couple of weeks. Any advice is welcome.

-Ryan