hi can any one help me ive got a new boost gauge but i dont knw wot to wire it up 2? can any give me sum advise please? there red orange n black wires
shim

 

Is it one that changes colour? - i had 1 of those on the last scoob and 1 wire was earth, 1 was switched live and the 3rd was a constant live so whichever colour was selected would stay until it was changed

I pulled the panel to the right under the steering wheel to wire it upto

 

unless its a digital Boost gauage and the Orange wire is to go to the sender....... More information is needed here.

Does it come with a Pipe that goes onto the back of the Boost Gauage? or does it come with the sender?

make and picures may help

 

its by motor meters racing and its say its smoke gauge series boost gauge bar yes it has a pipe that run from the back of the gauge to the front of the car i did try to wire it up to my turbo timer but when the car was n key taken out the backuplight stil stayed on so i dont know wot to do?

 

Sounds like you wired it upto the permanent live rather than the ignition live.

 

alright mate,ive just fitted a boost gauge,not same as yours but wires same,
1 black to earth,1 red to switched live,1 orange to lighting circuit,the lighting circuit one is so it dims when lights turn on,hope it helps