# O2 Sensor

**URL:** <https://forums.speedlife.net/t/o2-sensor/91638>\
**Category:** SON240sx Automotive\
**Created:** [January 4, 2006, 9:11pm UTC](https://forums.speedlife.net/t/o2-sensor/91638 "2006-01-04T21:11:20Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Silvia\_Drift](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/silvia_drift/32/5271_2.png) [@Silvia\_Drift](https://forums.speedlife.net/u/Silvia_Drift)\
**Post date:** [January 4, 2006, 9:11pm UTC](https://forums.speedlife.net/t/o2-sensor/91638/1 "2006-01-04T21:11:20Z")

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Hey guys. I need to replace my O2 sensor. I just wanted to knwo if I need a special tool to remove it and where I can get this tool. Thanks.

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**Author:** ![Gonad](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gonad/32/5481_2.png) [@Gonad](https://forums.speedlife.net/u/Gonad)\
**Post date:** [January 4, 2006, 9:28pm UTC](https://forums.speedlife.net/t/o2-sensor/91638/2 "2006-01-04T21:28:05Z")

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I believe it’s a 20mm or 22mm socket.

There are special 02 sensor removal sockets but I think you can get away  
with just a boxed end wrench.

Run the car, heat it up a bit, turn engine off and try removing it then.

:dunno:

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**Author:** ![alesserfate](https://avatars.discourse-cdn.com/v4/letter/a/f6c823/32.png) [@alesserfate](https://forums.speedlife.net/u/alesserfate)\
**Post date:** [January 7, 2006, 1:27am UTC](https://forums.speedlife.net/t/o2-sensor/91638/3 "2006-01-07T01:27:18Z")

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ah im going to be pulling mine out soon to check it, would channel lock pliars work if i open them up all the way, would i have enough clearance around that area ? i know its near the firewall somewhere on the manifold

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**Author:** ![Silvia\_Drift](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/silvia_drift/32/5271_2.png) [@Silvia\_Drift](https://forums.speedlife.net/u/Silvia_Drift)\
**Post date:** [January 7, 2006, 6:08am UTC](https://forums.speedlife.net/t/o2-sensor/91638/4 "2006-01-07T06:08:25Z")

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Oh I forgot to post. I did it with a boxed end wrench like Gonad said. It was pretty easy. The only thing I couldn’t do is tighten the new O2 sensor much because the heat shield got in the way. For some reason, it seems as though the new O2 sensor goes deeper into the mani or something. I hope it’ll hold lol. Thanks for the help Gonad.

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**Author:** ![Gonad](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gonad/32/5481_2.png) [@Gonad](https://forums.speedlife.net/u/Gonad)\
**Post date:** [January 7, 2006, 9:06am UTC](https://forums.speedlife.net/t/o2-sensor/91638/5 "2006-01-07T09:06:32Z")

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Would you believe I only hand tightened my O2 sensor? :shock:

No leaks or anything and it worked fine.

You only have to have it so tight. Then again it wasnt a permanent thing  
for me as I’ve since removed the manifold and exhaust/turbo systems  
after driving around for maybe 3 weeks or so.

> [@Silvia\_Drift](#):
>
> Oh I forgot to post. I did it with a boxed end wrench like Gonad said. It was pretty easy. The only thing I couldn’t do is tighten the new O2 sensor much because the heat shield got in the way. For some reason, it seems as though the new O2 sensor goes deeper into the mani or something. I hope it’ll hold lol. Thanks for the help Gonad.