boost gauge not working

SON240sx Automotive
1

I just installed an autometer boost gauge. I teed off of the smaller vaccum line on top of the throttle body that goes to the fpr. it will only read vaccum and not go into the boost. any theories on what could be wrong, I thought it was a pretty simple thing?

Corey

2

I just installed an autometer boost gauge. I teed off of the smaller vaccum line on top of the throttle body that goes to the fpr. it will only read vaccum and not go into the boost. any theories on what could be wrong, I thought it was a pretty simple thing?

Corey