[DRW1000]

Go get the codes read again and write down the actual error. Often an O2 sensor gives a non-normal value and is blamed as the cause but normally the O2 is reading correctly and there is a problem upstream that is causing the actual conditions reported by the O2 sensors.

We don'r have autozones up here in Canada but I have read numerous instances where the autozone folks read the codes and suggest an O2 sensor when in reality it is not an O2 sensor failure.