Lynx

I know the answer to this is obvious, but I am about ready to smash every goddamn thing in sight due to the little unanticipated problems of this swap (and I was warned of this). I have other questions, but this one takes precedent right now so….As stated in a previous post about wiring (what else?), this is what I have going:

98 DX Hatch
99 JDM ITR Motor/ECU
98 EX Harness

Where does the second O2 sensor plug in?

I have extended the primary O2 sensor that goes from the header to the engine harness. Problem is that I cannot find a second plug for the Cat’s/secondary O2.

I know the 00 Si has the secondary O2 run up into the cabin through a hole in the floor.

Where do the wires go from the secondary O2(if anywhere)?
Or should the Secondary O2 be plugged in and let the wires hang?
Or should the Hole in the Cat just be plugged up with something? If so, what?
Or should the hole just be left open.


BTW, thanks to everybody who has answered my noob questions within the past week. Your answers have been a great help. I am soooo close to finishing this mess, but I am royally frustrated at all of the small problems I have encountered and still am finding.

Lynx

Someone?

Lynx

Thank you.

After spending hours of searching, this is what I "thought" I had to do, but I was hoping there was going to be an easier way.