Every once in a while when i start my car up my autometer boost gauge does nothing. it will read 0 psi no matter if i boost or not. then if i drive it for a couple of miles it will all of a sudden start to work normally. it happened today and i got out and looked for kinks in the signal line(mechanical gauge) but i didnt see any. could it be the gauge? i bought it brand new only like a month ago. anyine else hade a problem like this?