I just bought an Air/Fuel gauge and a volt gauge, and I have read the instructions, however, where would I find these wires. Are all of them located within the same area? Am I going to have to hook them up to fuses? Also, will any of the wires need to be extended? Any help would be appreciated. Thanks

Tom

 

I was really hoping someone else would take a turn and answer your question as I've done it so many times already. Since noone else is stepping up, I'll give you a run down:

I am assuming that you got a narrow band A/F gauge, as opposed to a wide band one with its own O2 sensor. You should have a "power" wire (usually red), a ground wire (usually black), a wire for the OEM O2 signal. There are 3 unused power taps (male spade connectors on one end of the underdash fuse panel). They start out being empty. The bottom most one is HOT when the ignition is one. This is the one you need for power. Then you need to find a ground. If you look up and under your dash, you'll see an "octopus" of black wires going to a large bolt into the frame. Your ground wire gets tapped into any one of these wires. The signal feed needs to be "T" tapped into the white wire wire that is PIN #16 of the 31 pin connector going into the ECU.
For the Volt gauge, you just need to tap into the same power wire that you tapped into for the a/f gauge and the same ground as the a/f gauge. If you have a light bulb in that gauge, then you need to use the top empty spade connector in those 3 I mentioned earlier. Use the same ground as before for the light bulb ground wire. Here is a fuzzy picture of those 3 connectors. Mine has stuff spliced into them (red, yellow, red wires). Yours should be empty.

You can use an inline fuse of no more than 3 amps if you are worried. I don't use any fuses on my gauges.

 

Thanks alot for the help, you da man!