i bought and installed a boost gauge dec 2004. ever since i had it, the gauge needle has always pointed to .5 psi when the engine is off. i have DSMConvert's AFC, which reads vacuum/pressure, and found out that at 8psi, the gauge is off by over 2 psi (it reads 10psi). it is an autometer ultra light boost gauge. is there anyway i can have it sent back to autometer to get it fixed ? or will i just end up getting a new/different gauge ?