gauges
 

hi um what wires would be best to connect my boost gauge to so it can light up? and also a air to fuel ratio gauge, its not wideband i got it for free just want it for show, but dont know whether to connect it to o2 sensor or were on ecu

What make are they, Auto Meter etc ? Most manufactures have a link on their website to download instructions. One of the Air/Fuel meter wires will connect to the O2 sensor (there are 3 wires on the O2 sensor, 2 are the same colour which are for the heater element and one odd colour which is the signal wire) connect it to the signal wire. Links; Boost & Air/Fuel

gauges
 

i should have mentiond that, they appear to be megan racing gauges. and thanks bill.