How do you change the upstream o2 sensor
the check engine light is on and a mechanic put a machine on it an it detected the upstream o2 sensor
Is this a good question?
Sheila McGriff, the front sensor, located in exhaust manifold, it is accessible from top of engine after first removing the exhaust manifold heat shield. You will need a crow's foot socket (7/8") in order to remove the sensor. They are available at any parts store. Check this video for more instructions. Hope this helps, good luck
Was this answer helpful?
Past 24 Hours: 13
Past 7 Days: 79
Past 30 Days: 186
All Time: 5,489