# Passing emissions test?

**URL:** <https://boards.straightdope.com/t/passing-emissions-test/26794>\
**Category:** Factual Questions\
**Created:** [July 25, 2000, 4:45pm UTC](https://boards.straightdope.com/t/passing-emissions-test/26794 "2000-07-25T16:45:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jasonb94](https://avatars.discourse-cdn.com/v4/letter/j/71e660/32.png) [@jasonb94](https://boards.straightdope.com/u/jasonb94)\
**Post date:** [July 25, 2000, 4:45pm UTC](https://boards.straightdope.com/t/passing-emissions-test/26794/1 "2000-07-25T16:45:02Z")

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I drive a 1988 Honda Civic with 97,000 miles that runs very well, however yesterday, it failed an emissions test. It emitted 2.25 ppm CO, the limit is 1.75 ppm. Is there anything simple (and cheap) I can do to get the car to pass emissions for now?

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**Author:** ![Duck\_Duck\_Goose](https://avatars.discourse-cdn.com/v4/letter/d/50afbb/32.png) [@Duck\_Duck\_Goose](https://boards.straightdope.com/u/Duck_Duck_Goose)\
**Post date:** [July 25, 2000, 10:12pm UTC](https://boards.straightdope.com/t/passing-emissions-test/26794/2 "2000-07-25T22:12:03Z")

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Running the words “emissions failed” through [http://www.Google.com](http://www.Google.com) brought up the following (actually only a few of about 46,700 entries):

[http://www.bronco.com/ebr/bronco-talk/1996/mar/0486.html](http://www.bronco.com/ebr/bronco-talk/1996/mar/0486.html)

[http://www.mx5.net/mp-archive/748.HTM](http://www.mx5.net/mp-archive/748.HTM)

[http://www.bimmer.org/e28/messages/archive/msgsy2000w20/16109.html](http://www.bimmer.org/e28/messages/archive/msgsy2000w20/16109.html)

And last but not least, [If your car just failed an emissions test](http://www.mste.uiuc.edu/tcd/ecology/failedtest.html)

Happy surfing! 🙂

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**Author:** ![manhattan](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/manhattan/32/7_2.png) [@manhattan](https://boards.straightdope.com/u/manhattan)\
**Post date:** [July 25, 2000, 10:15pm UTC](https://boards.straightdope.com/t/passing-emissions-test/26794/3 "2000-07-25T22:15:59Z")

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Sorry, **Duck**. This was a double-posted topic. I’m closing this copy because most of the responses were in it’s sister, [here](http://boards.straightdope.com/sdmb/showthread.php?threadid=32033).