Help-Autometer Fuel Gage Wiring...

[Fast Horse]

I am having a problem with the Autometer fuel gage wiring in my 85GT. I used the yellow/white wire that is supposed to be from the fuel level sender and connected it to the Autometer gage. The tank is about 1/4 full but I get .02 Ohms between the sender wire (yellow/white) and ground. It should be a lot higher than that. When I turned the key to the ON (not run) position for the first time to test the gages, the fuel gage needle went way past full. I double checked the wiring and can't figure out what is going on.

What am I doing wrong??

Thanks
Steve

[795.0pacecar]

Is it the right gauge for the sender? I had the same problem and it turned out that I got a gauge with the wrong ohm range.

[85saleencoupe]

you have the wrong gauge either get a auto meter sender or get the right gauge

[Fast Horse]

It is the right gage.

Do I need to run a dedicated line to the sender? I thought I'd be able to use the factory wiring but the instructions say to run a wire to the sender. I assume that's for newly built cars like race cars or hot rods.

The thing is, I do not get a reading within the ohm range of the oem sender when I test the oe fuel level sender to ground. In other words, one lead of the multimeter on the fuel level sender wire and the other lead on a ground wire. I get .02 Ohms or something like that . It should be somewhere between 10ohms and 70ohms at 1/4 tank of gas. I'm thinking I need a dedicated wire run straight to the sender from the gage.

The sender is ok. It worked fine right before I took OEM dash out.

[795.0pacecar]

Its not too hard to add a dedicated wire, thats what I did and it works fine.

[85saleencoupe]

yea i just cut it from the plug in the trunk and zip tied a wire and ran it with the speaker wires and ran it up to the dash

[Fast Horse]

Cool, that's what I'll do then.

Thanks!

[Fast Horse]

Just an update...sorry it took so long.

It turns out that I was using a wire that was labeled as a ground (black with yellow hash marks) but wasn't worth a crap. After changing the ground, the factory wiring works just fine for wiring in the Autometer gages. I didn't have to run any extra wiring at all.

I had my doubts about cutting inside the dash to put in the MC Machine dash plate / Autometer gages but I'm glad I finally did it. It looks awesome. I had the plate anodized black and then painted the trim rings to match the grey on the rest of the dash.

[fordfreak300]

in that case we require pics!!!! we want to see how cool it looks.

[cjwanner2000]

in that case we require pics!!!! we want to see how cool it looks.

i second that!

[Mike 83 GLX]

Let's see it! What's the hold up?