Autometer A/F Gauge Install.. HELP!

[crunchie12268]

I just got an autometer A/F gauge for my 93 LX 5.0, I was looking at the wiring diagram and it says to hook up the violet wire to one of the three wires going to my O2 Sensor... which one? I have a black and two whites, what should I do? I called autometer and was on hold for 15 minutes before getting impatient....

 

[9 Deuce GT]

How much was it, and where did you get it from? I want the same thing.

 

[Zombietime]

How much was it, and where did you get it from? I want the same thing.

I have one that i'm selling. It's an autometer ultra lite a/f ratio gauge. I don't need it and it's in mint condition. PM me if you are interested.

 

[jrichker]

Use 43 (Dark Blue/Lt Geen wire) or pin 29 (Dark Green/Pink wire ) on the computer. Use Wire tap-ins from Radio shack P/N 64-3052. The computer is located under the passenger side kick panel. That keeps you from having to crawl under the car and make a weather proof splice in the wiring. You can use either one, or run a SPDT switch and use both. Then you can use the switch to select which side to view.

See the following website for some help from Tmoss (diagram designer) & Stang&2Birds (website host)

http://www.veryuseful.com/mustang/t...91eecPinout.gif

The A/F gauges that use the O2 sensor signal will jump all over the place. The reason is that the O2 sensors "switch" between .2 volt lean and .6 volt rich with a curve that looks like the drop off a high cliff. The curve is almost straight up and down, so the voltage shoots from .2 to .6 and back down . again 2 or more times a second at cruse. You won't get much useful information except when the mixture is extremely lean or extremely rich, there is no middle ground.