Sicarius428 said:Don't expect too much from the autometer A/F gauge... they are not known for being accurate at all... mine always reads lean.
Kevin
Auto meter instructions say to splice into the wire going from the PCM to the o2 sensor plug, not into the actual o2 sensor wire. I haven't looked yet, but is there more than 1 wire going form the PCM to the plug? If so, which is the signal wire?flyinghi3 said:on the O2 sensor there is two white wires and one black wire. thats were you hook the A/F gauge up to.
I know, I just need it to fill the hole.JT87NAT said:All the A/F gauge does is provide a nice light show. If you really want to know your A/F ratio go with a Wideband 02 kit, although they cost around 300 they are great if you are doing any kind of tuning. Any vacuum line coming off the intake manifold should work for your Vacuum gauge.
Loco5.0 said:I know, I just need it to fill the hole.
Loco5.0 said:FYI, your post seems to say splice into all 3 wires. Might wanna edit.
Not workingjrichker said:
I guess I should go by the Autozone diagram since the other one you linked is for 88-91 carsjrichker said: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.
AutoZone wiring diagrams
http://www.autozone.com/servlet/UiB..._us/0900823d/80/16/71/3c/0900823d8016713c.jsp for 79-88 model cars
http://www.autozone.com/servlet/UiB..._us/0900823d/80/19/59/5a/0900823d8019595a.jsp for 89-93 model cars
http://www.autozone.com/servlet/UiB..._us/0900823d/80/1d/db/3c/0900823d801ddb3c.jsp for 94-98 model cars
JT87NAT said:All the A/F gauge does is provide a nice light show.
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