Need Some Help: Rb20 O2 Wiring :(

[Kane_R32]

Hey guys, made the mistake of not labelling my o2 sensor wires before the big *snip snip*.

I assumed 3 wires, 3 different colours... turns out I was wrong (or its just old wiring and the lines are faded)

Anyway I'm almost certain the middle wire on the plug is ground (alot thicker).

Basically need to confirm that looking directly at the plug (release clip ontop):

Left Side =

Centre = Earth

Right Side =

[The Dan]

Centre should be signal.

The two on either side are not polar dependant as its for the heater element so they can be either way ground or positive

[Kane_R32]

Ok sweet, thanks heaps for clearing that up