We are grounding the controller for the sensor in the same place, we are just extending the distance from the sensor to the controller so we will be fine.

There should be a good block ground near the oil filter, a bit up from there I believe.

Thanks Dan. I think it would better to give the gauge it'* own separate ground Trent, especially if there is a good block ground right there. Although your right, we would be fine. Might as well to it right though, no slacking now.

There'* the engine sensor ground located on the rear horizontal bolt of the power steering bracket on the 00+'*. In the 96-99'* it'* the same hole, but a different length bolt because we don't get the ps bracket.

I went to one of the ground busses in the cabin. Passengerside and then soldered the wires to it. A little overkill, but I wanted to know the AFR was correct because my motor is worth a little solder to me. Plus I was anal retentive that day.

Being that both of you guys are 00+ and sharing the sensor (right?) I'd use one of the ground splice packs either inside or outside. They are all over your engine bay. ie ( by the ICM, on the trans by the selector, etc etc.

We are sharing it, that'* why we want the extensions so we can unplug from one car and move it to the other. Power and ground will also have to be a quick disconnect. Instead of running to a splice pack, I figured I would solder an 8GA wire to a ring terminal and ground it to the block right outside the firewall, then run that inside the firewall with the extension for the sensor/gauge.