Hello,

You can use either a wrench or an O2 Sensor Socket, to determine size of O2 Sensor when you purchase new one just find wrench or O2 socket that fits. Then just remove old one like you were removing any other bolt.

The location if your not sure is going to be the sensor closest to the engine on passenger side.

Answered by obxautomedic (expert)
3,502 answers provided