Electrical: How-To: A/F Gauge Install on 2006 Cobalt LS & Supercharged
Thread Starter
Senior Member
Joined: 05-17-06
Posts: 7,283
Likes: 0
From: Ft. Eustis, VA
Ok, this thread is kind of dead and old, but Ive got a couple questions about this install. Ive got the Autometer A/F gauge, its just for decoration in my dash, I know its not accurate. Everything has me confused because there are a million different ways told in this thread. After reading, my plan right now is to tap into the signal wire coming off the 02 before the cat. For power, tapping into the fuse shown on here that doesnt have constant power on the one side and adding an add-on fuse. What amp fuse should be used in the add-a-fuse? The instruction manual for my gauge says to attach the power wire to a 5amp fused spot. The one shown is 20amp I believe. Is there any other means of power that I can use for the gauge where it will not be constantly on? Such as a power wire in the ignition wires in the steering column or something? Any help is awesome, thanks!
Thread Starter
Senior Member
Joined: 05-17-06
Posts: 7,283
Likes: 0
From: Ft. Eustis, VA
If you want the light to turn on only when the lights are on. Run the light or power wire to a fuse that only turns when you turn on your lights.
Senior Member
Joined: 04-29-06
Posts: 2,977
Likes: 0
From: Mulberry, Florida
what if I tapped into the wire thats ON the 1st O2 sensor...the black wire (which plugs into the purple wire)? wouldnt that work as well?? Thats where i'm getting the signal from, and my gauge reads lean all the time...
Just installed my gauge and nothing happened.My ? is even if i'm not getting a proper signal and i have power, should the gauge still light up?
bump
I guess i should also add,the gauge is from faze and it has another set of wires.They are supposed to hook up to the dimmer and then ground.
bump
I guess i should also add,the gauge is from faze and it has another set of wires.They are supposed to hook up to the dimmer and then ground.
Last edited by Sizzle06; Sep 1, 2008 at 02:52 PM. Reason: Automerged Doublepost
OK.. So I wired it up as shown and nothing.. I used the purple/white wire as originally pictured.. I have a 2.4 auto though.. Any info on this? Using an Auto Meter narrow AFR.. I have nothing at all showing.. HELP!!
Unlike yours, I have 3 different looms.. Yours only has 1.. Shouldn't I just be getting a full light bar even if the sensor isn't plugged in? As long as it has power and a ground it should do SOMETHING should it not? And why are some people saying purple/white and others are saying only purple?
Thread Starter
Senior Member
Joined: 05-17-06
Posts: 7,283
Likes: 0
From: Ft. Eustis, VA
Find the rear o2 sensor. Follow the wires. Or just run one long wire down to the rear o2 sensor and splice it there. Make sure you splice it after the connection that way if you ever have to replace rear o2 sensor or take it off you do not have to resplice the gauge everytime.
Thread Starter
Senior Member
Joined: 05-17-06
Posts: 7,283
Likes: 0
From: Ft. Eustis, VA
Trace the one that is coming from your rear o2 sensor. Just put the car on ramps and trace it. Or get a paperclip put in back of connector and touch wire to see if sensor jumps and bounces that its on the signal wire.
I recommend tracing first.
I recommend tracing first.
So just jack up the back of the car and run a wire for the signal all the way to the rear 02 sensor instead of running to that wire in the loom? How exactly do you splice it into the sensor? I've only even spliced wires into wires / wires into fuses..?
Thread Starter
Senior Member
Joined: 05-17-06
Posts: 7,283
Likes: 0
From: Ft. Eustis, VA
That is pointless. Take your finger find the wire, and take your time and find it closer. No sense in running 10ft of wire when you only need to run 3ft. You cut it. Strip both ends and the end of the wire your adding. Solder them together.
Senior Member
Joined: 09-01-05
Posts: 2,382
Likes: 0
From: Delaware
I tried 1 of the 3, and when I touched hte signal wire to it, it jumped from one side of the gauge (no signal) to the other and never moved or wobbled. I tried giving it some gas, and never budged. I assume, it was getting a signal, but not from the right wire correct?
Now I have a 50/50 chance of grabbing the right one on the second try? If it works, and wobbles im good to go?