I tried searching but couldnt find much because u cant search "o2"

Anyways, my friend has a 96 ex coupe and it failed nys emissions. Claimed the o2 was bad. I installed a new bosch o2 sensor for her ( the o2 on mani) and her code went away.

Question: Does the car have to be running or driving for a certain lenght of time for the ecu to "register" the o2 again before she can have it inspected tomorrow?

 

yes, don't know the parameters though
the o2 monitor should be the only one that has to pass now.

 

i let the car idle for about 5 minutes and nothing popped up... is it too early to celebrate ?

I thought i read somewhere you have to drive the car 50 miles...but idk if thats accurate

 

Once the CEL is cleared you are set to go, the ECU recognizes it right away, and nothing needs to be 'registered'.

 

The readiness monitors needs to be reset. I just did mine. I drove about 15 miles before having emissions inspected immediately after. The cars ecu must have a history of the car running correctly in order for it pass inspections, thats what the readiness monitors are for.

 

what are the readiness monitors?

I just disconnected the battery for about 5 minutes, and only planned on driving it about 10 miles or so and prayin no cel pops back up