# 97 Lumina LS 3.1 02 sensor 1

**URL:** <https://community.cartalk.com/t/97-lumina-ls-3-1-02-sensor-1/70840>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, lumina\
**Created:** [February 8, 2012, 2:51am UTC](https://community.cartalk.com/t/97-lumina-ls-3-1-02-sensor-1/70840 "2012-02-08T02:51:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![gregm](https://avatars.discourse-cdn.com/v4/letter/g/bc79bd/32.png) [@gregm](https://community.cartalk.com/u/gregm)\
**Post date:** [February 8, 2012, 2:51am UTC](https://community.cartalk.com/t/97-lumina-ls-3-1-02-sensor-1/70840/1 "2012-02-08T02:51:33Z")

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My check engine light shows that my 02 sensor 1 has a slow response. I see where it plugs into the exhaust manifold, but I dont see where the other end goes. Where does it go to and what do I need to know before I tackle this difficult job? I see several different brands of 02 sensors; are some brands better than others? Thank you for your help.

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**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\
**Post date:** [February 8, 2012, 3:45am UTC](https://community.cartalk.com/t/97-lumina-ls-3-1-02-sensor-1/70840/2 "2012-02-08T03:45:31Z")

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There’ll be an electrical connector on the other end that connects it to the wiring harness going into the ECU.

A Haynes manual should show you. It’d be a good investment.