Oil Temp and Pressure gauges
So I added an oil temp and oil pressure gauge to the Exige
I don't like looking down at the floor to see gauges that might be important, so I wanted them up with the others, but to look more or less like they belonged.
The sender replaces the OEM one and should act similarly. I T'ed in and ran a wire up front so I can install a big red oil light if I so choose.
I wired into the lighting circuit from the back of the gauge cluster, as noted in my finding sidelights wire thread. Note that the red/orange wire in the CANbus connector will not run a light bulb.
Ran the wires in through the chassis. It opens into the engine bay and you can fish a wire up to under the sill panel. I happen to have about 10k feet of twisted shielded pair irradiated PVC airplane wire which also happens to slip into the grooves in the chassis side rail. Held it in with a few dollops of RTV.
Power I ran from a new fuse in the fusebox in the passenger footwell. The rearview camera wiring was some awful huge black/red pair that ran from wires kluged into the headlight switches, so I took the opportunity to replace that and used the original to fish the power wire from the passenger side over to the driver side.
Ground was a little amusing. I thought I could trap a ring lug under an attachment screw for the dash end trim panels, but even though it screws right into the alloy, no connection. Drilled and tapped a small screw on either end, one for the camera wiring, one for the gauges.
The bezels were silver and I painted them black, poorly. May work on a nicer job.
Anyway I think they blend in and are right in line of sight, and I have a spare sensor sized wire if I ever need one.
Housings are turned from solid delrin. brackets are aluminum bent and painted black. Drilled a small hole for a sheet metal screw through the dash pad, one where there was already a hole, and the other symmetrical.