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Pre cat passenger side O2 sensor 2001 GXE

531 Views 6 Replies 2 Participants Last post by  dasupr3mek1ng
I have a 2001 Sentra GXE and I need help removing the O2 sensor that is on the passenger side at the top of the engine, before the catalytic converter. I've replaced the other 3 already but I can't get this one out. Does anyone have a suggestion for that specific sensor? What's the best tool and procedure to use?

Thanks
Lewis King
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I have a 2001 Sentra GXE and I need help removing the O2 sensor that is on the passenger side at the top of the engine, before the catalytic converter. I've replaced the other 3 already but I can't get this one out. Does anyone have a suggestion for that specific sensor? What's the best tool and procedure to use?

Thanks
Lewis King
I use a O2 socket
Thanks. I fixed it several days ago. I had to disconnect all of the 02 sensors, remove them from the manifold cover, then remove the cover itself. Once that's done the O2 socket is the easiest one to use.
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Thanks. I fixed it several days ago. I had to disconnect all of the 02 sensors, remove them from the manifold cover, then remove the cover itself. Once that's done the O2 socket is the easiest one to use.
If it's OEM manifold replace it asap.
Are they faulty?
Very, Cat material falls apart and gets in your engine and destroys it. I have a used Megan Racing manifold if your interested.
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