I was in the process of installing a autometer(ford racing type)boost gauge I got from ebay for my HD truck. Then I dropped the gauge on the ground accidentallyops:. Luckily no scratch. I think the calibration got screwed up because the red needle is past the 20psi mark and between the two black dots on the bottom of the gauge face. Is there a way I can fix it? I'm assuming right now that its toast and probably will have to get a new one. THis guage is one of those gauges made for the HD trucks and it matches the stock gauges.