Replaced Rear O2 sensor with O2 sim for P0420 Code.

[Need4Camaro]

I was just wondering, how long will it take for my SES to go out? should it happen instantly or will it take awhile?

[Docta]

Re: Replaced Rear O2 sensor with O2 sim for P0420 Code.

You have to reset the light. Take it to a parts store or somewhere they can reset it, because it has a pending code in the PCM still.

[2.8 Bird]

Re: Replaced Rear O2 sensor with O2 sim for P0420 Code.

I was just wondering, how long will it take for my SES to go out? should it happen instantly or will it take awhile?

There's a code reader scanner you can buy at any parts store for OBDII and it does have an erase selection on it.

OR you can simply unplug your battery for a couple of minutes and plug back up again. I haven't done this with my 4th gen bird but it works with my other cars.

[flamingchicken]

Re: Replaced Rear O2 sensor with O2 sim for P0420 Code.

What docta said, they usually have ones you can use in the store, reset it real quick for you.

[Need4Camaro]

Re: Replaced Rear O2 sensor with O2 sim for P0420 Code.

I went to the autostore and had it reset by O-Reilly's...yay.

Im hoping I never see this code again. Im ganna push for an Emissions test tomorrow after work.

[Docta]

Re: Replaced Rear O2 sensor with O2 sim for P0420 Code.

I put a sim in mine about 5 months ago now, and no problems since.