# 2002 Volkswagen GTI - New Cat/CEL not going off

**URL:** <https://community.cartalk.com/t/2002-volkswagen-gti-new-cat-cel-not-going-off/148134>\
**Category:** Maintenance/Repairs\
**Created:** [September 4, 2019, 10:44pm UTC](https://community.cartalk.com/t/2002-volkswagen-gti-new-cat-cel-not-going-off/148134 "2019-09-04T22:44:28Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Arlene26](https://avatars.discourse-cdn.com/v4/letter/a/df788c/32.png) [@Arlene26](https://community.cartalk.com/u/Arlene26)\
**Post date:** [September 4, 2019, 10:44pm UTC](https://community.cartalk.com/t/2002-volkswagen-gti-new-cat-cel-not-going-off/148134/1 "2019-09-04T22:44:29Z")

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Own a VW GTI, 2002, failed smog test, replaced catalytic converter but the computer said not reset. We have been driving it at 55, but not working and following on line suggestions but so far no luck.

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**Author:** ![Purebred](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/purebred/32/46796_2.png) [@Purebred](https://community.cartalk.com/u/Purebred)\
**Post date:** [September 5, 2019, 6:15am UTC](https://community.cartalk.com/t/2002-volkswagen-gti-new-cat-cel-not-going-off/148134/2 "2019-09-05T06:15:42Z")

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Have you had the codes read after replacing the catalytic converters?  
If so, post the codes here and maybe someone will give you some ideas.

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [September 5, 2019, 3:35pm UTC](https://community.cartalk.com/t/2002-volkswagen-gti-new-cat-cel-not-going-off/148134/3 "2019-09-05T15:35:10Z")

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You have to keep repeating the drive cycle for the catalytic converter until the readiness monitor resets.

> **[Volkswagen Emission Monitors Not Ready](https://www.smogtips.com/smog-question/3017/Volkswagen-Emission-Monitors-Not-Ready)**
>
> (RESOLVED - Click To View) Hello. Last month I got my VW Rabbit smogged and it passed the smog component but I was failed for my evaportive and secondary air system emission monitors not being ready. My battery had died shortly before the smog test....

Tester