Ok , i have a 98 civic hatch with a gsr obd1 engine running a p72 obd2a ecu,
I did the CKF Bypass and the Knock sensor Bypass with my DX harness.
Im running a 98 spec ITR header and a ITR Cat
The ecu looks for 2 o2 sensors, but I only have a plug or hole for one...
what should i Do???
I NEED and WANT TO PASS INSPECTION. & TO TURN OFF THE CHECK ENGINE LIGHT
*Sorry to Clarify , Its a JDM 98 Spec itr Header with a JDM ITR Cat. *

 

ITR tegs are all OBD2
So if you are running a OEM ITR cat the bung for O2S2 should be right on the cat, and the primary right on the manifold collector, at least I believe so...

Anyways a exhaust bung can be had from xenocron or similar suppliers for little coin, And the muffler shop wont rape you to bad to weld it in there. Just make sure the placement of the bung replicates the factory position as best as possible. get an O2, wire it up, and call it a day.

 

yea there should/might be 2 O2 sensors. one on the downpipe and by the exhaust manifold. try using a chipped ecu that can try to kill the code

 

He probably won't pass inspection. If he goes OBD1 because the scanner won't recognize OBD1 ECUs.

 

Im running a JDM 98 Spec header with a JDM Type are CAT, so No hole on the cat.

 

Source the bung then,
and have a reputable muffler guy weld it in for you.

The engie light you have is for catalyst effeicency, and that monitor must run its course and show readyness for the emissions inspection.
O2S2 is solely used for this catalyst effieciency system.
And will not effect how the car runs, fuels, ect.
just an annoying light, and no smog until sorted out.

 

ok thx, I will have probably extend the wires for o2 sensor 2 right..?