Wire from speedometer?

[80spiddy]

I had to pull my dash to replace the speedo cable. Once there, I noticed a cut wire which looks like it goes to the speedometer. It's yellow with a red stripe and at least a foot long. What would it's function be? Thanks for any help.

[bradartigue]

It sounds like the lead to the O2 sensor counter. Someone who didn't know what the hell they were doing cut it, instead of simply resetting the counter and/or removing it.

[80spiddy]

Ok thanks. I'll make sure the end is capped of the bare wire.

[MattiR]

Hi
I have similar yellow-red loose wire in back of speedometer. Gauge is -81 and car -72 without O2 sensor, so I understand that I can remove the wire and the small piece in the back of speedometer?