AFR guage install.

**Wheeler99WS6** · 10-28-2006, 01:37 PM

Auto meter Pro Comp Ultra lite AFR guage

Instructions say red wire is to be connected to a fused and switched 12v positive source that is turned on and off with the ignition switch.

that said anybody have tips on what wire I should go with to hook that to?

black wire is to be connected to good engine ground
so I am assuming I can just ground it anywhere as long as its a good ground.

[COLOR="black"]Violet wire connect to oxygen sensor signal wire. Connect to vehicle wiring harness, not to oxygen sensor since some oxygen sensors use shielded wire.[/COLOR]

I am as clueless as could be on that one, I have no clue which one of the mess of wires connected to the pcm would be the one I want to connect to I dont want to connect to the wrong one I dont have rear o2s anymore, I would really like to do this install myself and not have to pay someone to do it. Any help you guys can give me is greatly appreciated.

**SSpdDmon** · 10-28-2006, 02:05 PM

I hate to break it to you, but that guage is nothing more than a glorrified light show without a wideband oxygen sesnsor. If you want to make it easier, check out some of the LS1 aftermarket sites (ls1speed, thunder racing, texas speed, etc.). One of them sells a connector that has the wire you need for hooking up an AFR guage. As for a switched 12v source, you could use the traction control power source if you have it. Should be a pink wire hooked up to the switch.

**2001NBMZ28** · 10-28-2006, 02:15 PM

For a switched source the traction control pink wire behind the bezel will work, even if your car doesn't have it - or just extend the wire to the radio fuse (won't go off until the door is opened though). Any ground is good. Here's the 99 PCM pins - www.ls2.com/boggs/torques/99pinpcm.htm

**Wheeler99WS6** · 10-28-2006, 02:18 PM

I need another wire......man this thing is junk I figured that is was but not till after I bought it, hell now I dont even know how to hook the stupid thing up.

**Wheeler99WS6** · 10-28-2006, 03:33 PM

SSpdmon: I found the connector you were talking about on Ls1speed thanks. Hopefully that will do it, so I can get some kind of use out of the guage even though it wasnt exactly what I wanted, I was looking for a wideband that installs like any other guage and impulsively bought this guage, oh well.

**Wheeler99WS6** · 11-08-2006, 12:42 PM

Purchased the pigtail to make it easier for the signal wire connection should be in the mail tomorrow I was told. Got the a-pillar pod and gauge mounted but still not sure what to connect the positive wire to. There is a crap load of wires behind the steering wheel, I think I seen 3 different pink ones all together. Also I think I may need to extend the ground and signal wire after taking them into the engine bay there isnt much slack left. Any suggestions?

**Wheeler99WS6** · 11-09-2006, 06:44 AM

ok I bought some wire so I can extend the wires from the gauge and I finally figured out which wire to connect my power wire to on the TCS switch, also know where I am going to ground to. Now all I need is the pigtail so I can connect the signal wire to it, i am kinda glad I dont have to hunt for the signal wire, I honestly dont have a clue as to which one it is.