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Air/Fuel ration guage install

5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Air/Fuel ration guage install

Old 07-04-2005, 05:19 PM
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Default Air/Fuel ration guage install

Need a little help on my guage install. The guage has 3 wires. Hot, Ground, and one that goes to the O2 sensor. Got the hot and the ground covered. Just need to know which wire on the o2 sensor is the one I need to tie into. Anybody got a good guess?
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Old 07-04-2005, 05:50 PM
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Default RE: Air/Fuel ration guage install

when I did mine, I got the wire colors from a ford tech guy and he gave me the wrong colors, so I followed the oxygen sensor harness to where it plugs in right under the mass air meter.

the right one was a red wire and the other one waswhite/grey.
I would suggest following the harness.

I also wired a switch to switch sides.
I can look at the right side and the left side.
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Old 07-04-2005, 10:55 PM
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Default RE: Air/Fuel ration guage install

its the black wire. you have two whites and a black.
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Old 07-05-2005, 12:10 AM
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Default RE: Air/Fuel ration guage install

Thanks guys, I'll install it in a day or two when work permits and let u know how it went. Thanks a lot.
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