Originally my car was fitted with a 3" downpipe that had no lambda sensor fitted. The car is a 95 JDM.

I got a new 2.5" system a few months ago as the backbox on the old system was shot.

The new exhaust has a sensor just behind the turbo, its got 2 wires and a little white plug, its never been plugged in to anything.

Recently I got a CEL come up and on joining the diagnostic wires I got the code for O2 sensor.

So where does this sensor plug in?

 

Anyone?