fuel pressure gauge help

[garyk1970]

i bought this guage and sender shown,and I cannot find any info/wiring diagrams for it.....name brand unknown.....
wires coming out of gauge;

red
black
blue
purple

also;
threaded post that has a "+" beside it.
another threaded post

bracket to mount gauge with insulators on it to keep from shorting on studs and housing....

thought red would be positive but why does it have a pos post?

 

[garyk1970]

got it....for those who do a search;

red= ign+
black=grnd
blue=sending unit signal
purple=dimmer+

also;
threaded post that has a "+" beside it.= n/a
another threaded post = n/a

 

[Fast4Ward]

does the electric gauge have the name "Prime" on the back?
....if so they have a website.

 

[garyk1970]

yes it does...."prime" and "g7"....ill look it up....





sorry,i somehow modified your post(not used to my new moderator buttons yet),its strait now....Gary.