Run vac line to psi gauge then hook up electrical wires. The af guage your talking about is a narrow band I'm guessing? Tie into front o2 then rock out.
If the boost gauge is manual you run a vac line through the firewall, if it is an electric gauge you splice the sender into a vacuum line and then wire it through the firewall. For a wideband you can use the spare bung in the stock J pipe or if you have an aftermarket exhaust you have to have a bung welded in. If it is a narrowband don't waste your time installing it, the gauge will tell you literally nothing and is no more than a light display.
holy crap...hmm...lemme try to figure some stuff out. I didn't expect it to be this complex. I'm a noob when it comes to electrical stuff on cars. I'll need some help soon, but lemme go and have a look and plan everything out. If I have questions, I will certainly be posting up questions.
my setup is a fmic with a relocated maf. I tapped into the brake booster line with a Y connector I bought from O'reilly Auto Parts and hooked it up with my turboxs rfl bov. I got a tripple pod pillar i got from a friend along with a Godspeed airfuel ratio and an electric boost gauge. Of course they come with wires, but I have not done anything yet because I dunno what to do or where to hook them up to get through the firewall.
There are plenty of places to go through the firewall, most use the large black rubber plug on the driver's side.
And if the AFR gauge is not a Wideband O2 it is not worth tapping into the harness to install.
