autometer boost guage doesnt go back to zero :s

[Coupe-This]

Hey guys i installed my autometer boost guage today and when it gets on boost it doesnt go back down to the zero mark, its only a boost guage and not a boost/vaccuum guage. Any one else encountered this or know how to fix it? is it as simple as changing the constant wire over?

Any help would be appreciated as i will be trying to rewire it tomorrow afternoon.

[Coupe-This]

Dont worry about it, i found out the problem, just rewired it, seems to be fine now. No harm done whats so ever.