# 2001 chev prizm CEL code **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** prizm, chevrolet\ **Created:** [February 24, 2010, 12:44am UTC](https://community.cartalk.com/t/2001-chev-prizm-cel-code/45027 "2010-02-24T00:44:23Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![docinsano](https://avatars.discourse-cdn.com/v4/letter/d/54ee81/32.png) [@docinsano](https://community.cartalk.com/u/docinsano)\ **Post date:** [February 24, 2010, 12:44am UTC](https://community.cartalk.com/t/2001-chev-prizm-cel-code/45027/1 "2010-02-24T00:44:23Z")
My car’s Check Engine light decided to come on, so I hooked up my CarChip to check the diagnostic codes. It threw me a P0133 - O2 sensor circuit slow response. A couple of questions: What causes such a code to occur, and how is it fixed? I’ve reset it for the time being, and the CEL hasn’t come back on, but earlier in the week I reset it and it came back on after driving it a while (probably after 60-100 mi). Don’t know if that matters, but whatever. Thanks in advance. ---
**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\ **Post date:** [February 24, 2010, 2:47am UTC](https://community.cartalk.com/t/2001-chev-prizm-cel-code/45027/2 "2010-02-24T02:47:01Z")
Check this out: [http://www.obd-codes.com/p0133](http://www.obd-codes.com/p0133) I have always found that site, in general, to be very useful. ---
**Author:** ![docinsano](https://avatars.discourse-cdn.com/v4/letter/d/54ee81/32.png) [@docinsano](https://community.cartalk.com/u/docinsano)\ **Post date:** [February 24, 2010, 4:23am UTC](https://community.cartalk.com/t/2001-chev-prizm-cel-code/45027/3 "2010-02-24T04:23:34Z")
Thanks for the link, very helpful. Pretty sure it’s the o2 sensor then, as I had an issue with a dirty MAF sensor last year that was giving me issues, so I’m pretty sure that’s whats going on.