# Wideband

**URL:** https://forums.speedlife.net/t/wideband/113629
**Category:** SON240sx Automotive
**Created:** [March 3, 2008, 5:39pm UTC](https://forums.speedlife.net/t/wideband/113629 "2008-03-03T17:39:37Z")
**Posts on this page:** 7
**Page:** 1

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### Author: ![nitescream](https://avatars.discourse-cdn.com/v4/letter/n/8797f3/32.png) [@nitescream](https://forums.speedlife.net/u/nitescream)
#### Post date: [March 3, 2008, 5:39pm UTC](https://forums.speedlife.net/t/wideband/113629/1 "2008-03-03T17:39:37Z")

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when using a wideband… do u still need to use the stock O2 sensor with the SR20?? i have the PLX 300 unit

[www.plxdevices.com](http://www.plxdevices.com)

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### Author: ![240rex](https://avatars.discourse-cdn.com/v4/letter/2/54ee81/32.png) [@240rex](https://forums.speedlife.net/u/240rex)
#### Post date: [March 3, 2008, 5:45pm UTC](https://forums.speedlife.net/t/wideband/113629/2 "2008-03-03T17:45:13Z")

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no

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### Author: ![nitescream](https://avatars.discourse-cdn.com/v4/letter/n/8797f3/32.png) [@nitescream](https://forums.speedlife.net/u/nitescream)
#### Post date: [March 3, 2008, 5:52pm UTC](https://forums.speedlife.net/t/wideband/113629/3 "2008-03-03T17:52:17Z")

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so it wouldnt throw a code??

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### Author: ![Oni-Kyan](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/oni-kyan/32/5503_2.png) [@Oni-Kyan](https://forums.speedlife.net/u/Oni-Kyan)
#### Post date: [March 3, 2008, 5:55pm UTC](https://forums.speedlife.net/t/wideband/113629/4 "2008-03-03T17:55:18Z")

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yes your car still runs on the stock o2 sensor and your wideband runs on its own o2 sensor  
unless you have a zeitronix wideband

Mael

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### Author: ![nitescream](https://avatars.discourse-cdn.com/v4/letter/n/8797f3/32.png) [@nitescream](https://forums.speedlife.net/u/nitescream)
#### Post date: [March 3, 2008, 5:58pm UTC](https://forums.speedlife.net/t/wideband/113629/5 "2008-03-03T17:58:36Z")

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it has it own o2 senor, okay so i guess ill get the bung put in… thanks

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### Author: ![Gongster](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gongster/32/5615_2.png) [@Gongster](https://forums.speedlife.net/u/Gongster)
#### Post date: [March 8, 2008, 10:49am UTC](https://forums.speedlife.net/t/wideband/113629/6 "2008-03-08T10:49:26Z")

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The PLX M-300 has a 1V O2 output. Connect that output to the wire that the original O2 sensor connected to.

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### Author: ![Pants](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pants/32/5590_2.png) [@Pants](https://forums.speedlife.net/u/Pants)
#### Post date: [March 8, 2008, 10:51am UTC](https://forums.speedlife.net/t/wideband/113629/7 "2008-03-08T10:51:54Z")

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MY SM-AFR has a output that sends a o2 signal to the ecu. wich is a better reading than your stock narrow band