Quote Originally Posted by 00Civic View Post
UPDATE:

I went and got my exhaust gap welded, so now it's quiet. Also, it stopped bogging at idle, so all is well. I just need new wheels, new lowering springs ( I hate the f'kin coilovers - too bouncy for my taste ), and need to wire up the oxygen sensor.

Although, I do have one question. I currently don't have a primary o2 sensor, but the secondary is plugged in. I have 4 wires that is cut and I'm assuming that it's for the primary o2 sensor. My header does not have a bung in it to accommodate the o2 sensor. Should I make a bung or is there a way to bypass the primary sensor? Or can I wire the primary to the secondary so it reads as one?

Any input is appreciated
is the ECU OBD 1 or 2? If obd2 you will need both up stream and down stream to pass emissions and not throw a cell, if the ecu is OBD 1 then you only need the O2 before the cat... From what I read it sounds like you need an O2 before the cat, so yes go have a bung installed!! LOL