i have a chipped 99 a4qtm and decided to put a gauge in the other day...i finally got it to work but theres a few problems...

1. im idling at 8 Hg and only boosting to around 5-6 peak which i know isnt right
2. it sounds like theres boost being leaked out behind my gauge (which im assuming is the cause of #1)

anyone know whats wrong?

 

you should tell whats wrong...

not enough info. where did you connect the gauge hose ?

make sure u tight everthing!!

hg should be about 20-22.

5-6 peak is normal if it is stock.

 

Yeah thats definately not right... As aRIf said, im stock at 20-22hg with peak psi at 7ish.

 

Dang.. You need a chip!

 

I think this is obvious...

Pull out the gauge and make sure you clamped everything right... follow the noise...

That leak will cause low vaccum/low boost readings... Might not effect your engine as much as the gauge...

so yea.. find the noise..

 

Yeah I am booking my appointment for next week... can't wait!

 

Uummm...are you sure the "noise" isn't the normal sound of the boost gauge? It should make a sort of metal rattling sound. Otherwise, check all your lines really well and make sure that the grommet on the firewall didn't pinch it closed.

 

Good point. Mine does have a small amount of air sound - boost running through the guage. I know though that there is no leak.

If you are chipped, it sounds like there is a leak somewhere and as drkenan said, you may have pinched the line somewhere along the way.