I installed a defi d boost gauge it was working fine.. but today i turned on my car and the needle sits at zero.... it normally sits at 18-20 vac. I checked the lines and nothing is loose, i think the gauge fried ... This was installed no more than 2weeks ago... this sucks. I wonder if the heat has anythign to do with it.. i touched teh gauge and it was really hot cause it was sitting in direct sunlight. i dunt kno damn

 

this might be stupid, but did you already check the electrical line and ground wire to be sure they are tight too. just a thought

 

ok umm i went for a drive... the vac kicks in after i drive for a bit but at idle it reads 0!!! someone chime in!!

 

i would pull your vacuum line and and make sure there are no kink, bends, or leaks in it. then reconnect it.

i had the d gauge, never had any problems. hope you figure it out.

 

Okay, I know the answer but I am not telling you because it's been covered a million times.

 

come on help the guy out

 

Here i helped... click this link
https://www.evolutionm.net/forums/search.php