So I'm still getting the CEL for the O2 sensor.
It only happens when the engine has been run for a while. I'm guessing the sensor needs to heat up to a certain temperature to work properly. I took a class on BioMEMS sensors and was told by the professor IrOx O2 sensors need to reach above 600F for them to work properly.
I am thinking of getting the $99 VX O2 sensor from auto parts direct. (its now $77)
The problem is I have searched the forums and it seems that one on the site is the L2H2 sensor with the blue wire. The L1H1 sensor I have currently doesn't have a blue wire. So is it the same sensor? i have also read on the forums that the L2H2 is an improved version of the L1H1 and more rugged; and it is for the later Civic HX.

Does anyone know if they are compatible or not? I am sure my car is federal model. I want my CEL to go away so it will be easier to sell the car later.

Sorry to hear that sunv

Welcome to the club and we are very happy to have you on here another genuine person (lost count of how many there is on here).

From Harry Little REDZED