aftermarket boost gauge Q

mywhite89

Registered User
My brothers got a GTP, forgive him please, and he bought an aftermarket boost gauge off of a guy. I thought it to be kind if wierd that it reads about 3 pounds of boost not even hooked up. For other people that have aftermarket boost gauges, is this one messed up?


Or maybe there's an adjustment I didn't think of that?
 
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