what o2 sensor are you guys running on the aristo harness, i thought the mkiv tt o2 would be the same but its 4 wires, and all the loose plugs ive found [2] are 3 wires. also on which side is the 02 sensor plug on the aristo harness is it on the pass. side or on the driver side.

 

if i remember right the aristo harness uses a different o2 sensor as the 4 wire is a ho2s youcan use don't qutoe me on this as i rarely use the aristo harness but i think is the the same as the three wire on the mk3 cant remember for sure but you can always go to your local auto parts and get a three wire generic o2 sensor and sensor is still on the same side passenger

 

bump. can any one else direct me in the right direction?