I cleaned my ISV and new O2. My 95r in socal still hunts when cold. I stopped worrying about it since it doesnt seem to affect drivability and goes away in a few minutes of driving.

 

Hey,

Maybe I should makes things a little clearer. My car was hunting cold and hot and replacing the O2 senser helped fix that problem. As far as passing smog, the car needs cats to pass, that's why they were put back on the car, eh?

Cheers,