EGT gauge wiring - Ford Powerstroke Diesel Forum
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Old 05-29-2011, 06:37 AM
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EGT gauge wiring

I have an 05 that I need to know where to tap the harness for power and lite circuit.

Any ideas?

Thanks in advance
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Old 05-29-2011, 06:48 AM
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I took a test light to the big wiring harness under the dash on the driver's side. I don't recall the wires off the top of my head, but I'll take a look and let you know.
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Old 05-29-2011, 06:56 AM
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Thanks Shawn
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Old 05-29-2011, 07:05 AM
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Ok. One of the wires goes to a red wire with green stripe that goes to the white connector just to the right of the fuse box. It's the top wire in the white connector. I didn't label it, so I don't know if that is switched power or the light circuit. I was looking at the other wire, but can't see where it terminates just yet. There's a BUNCH of wiring under there with my alarm, my stereo, brake controller, etc. I'll see if I can get you the color and location of the other wire.
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Old 05-29-2011, 07:31 AM
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Ok, so the red wire/green stripe is the gauge switched power wire. The light power wire goes to a brown wire on the gray connector coming from the light switch. Pop the light switch out and you will see the brown wire on the far inboard side of the gray connector. Best of luck with your install and let me know if you need any additional help.
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Old 05-29-2011, 07:52 AM
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thanks Shawn--you are the man!!
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Old 05-29-2011, 07:55 AM
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Glad to help, buddy.
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