# Toyota Tacoma 2002 - check engine light

**URL:** <https://community.cartalk.com/t/toyota-tacoma-2002-check-engine-light/79427>\
**Category:** Maintenance/Repairs\
**Tags:** tacoma, toyota\
**Created:** [May 21, 2013, 12:15am UTC](https://community.cartalk.com/t/toyota-tacoma-2002-check-engine-light/79427 "2013-05-21T00:15:28Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![lyrehc](https://avatars.discourse-cdn.com/v4/letter/l/4bbf92/32.png) [@lyrehc](https://community.cartalk.com/u/lyrehc)\
**Post date:** [May 21, 2013, 12:15am UTC](https://community.cartalk.com/t/toyota-tacoma-2002-check-engine-light/79427/1 "2013-05-21T00:15:28Z")

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had muffler replaced and check engine light came back on. now it is catalytic converter and will cost an additional $3,000  
any ideas??? needs to pass MA inspection.

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**Author:** ![lyrehc](https://avatars.discourse-cdn.com/v4/letter/l/4bbf92/32.png) [@lyrehc](https://community.cartalk.com/u/lyrehc)\
**Post date:** [May 21, 2013, 12:15am UTC](https://community.cartalk.com/t/toyota-tacoma-2002-check-engine-light/79427/2 "2013-05-21T00:15:56Z")

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year is 2002

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**Author:** ![missileman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/missileman/32/1366_2.png) [@missileman](https://community.cartalk.com/u/missileman)\
**Post date:** [May 21, 2013, 12:27am UTC](https://community.cartalk.com/t/toyota-tacoma-2002-check-engine-light/79427/3 "2013-05-21T00:27:07Z")

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Get a second opinion from a good independent mechanic. Make sure the catalytic converter is actually bad before you waste your hard-earned money. Post the fault code and I’m sure we can help you.

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**Author:** ![lyrehc](https://avatars.discourse-cdn.com/v4/letter/l/4bbf92/32.png) [@lyrehc](https://community.cartalk.com/u/lyrehc)\
**Post date:** [May 21, 2013, 1:35am UTC](https://community.cartalk.com/t/toyota-tacoma-2002-check-engine-light/79427/4 "2013-05-21T01:35:25Z")

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fault code is P0420

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**Author:** ![lyrehc](https://avatars.discourse-cdn.com/v4/letter/l/4bbf92/32.png) [@lyrehc](https://community.cartalk.com/u/lyrehc)\
**Post date:** [May 21, 2013, 1:36am UTC](https://community.cartalk.com/t/toyota-tacoma-2002-check-engine-light/79427/5 "2013-05-21T01:36:51Z")

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before muffler and 02 sensor fixed last week the code was P0442

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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:** [May 21, 2013, 1:46am UTC](https://community.cartalk.com/t/toyota-tacoma-2002-check-engine-light/79427/6 "2013-05-21T01:46:43Z")

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The code’s right, but the price is outlandish. Missileman is suggesting that you have the output traces done no the oxygen sensors. I agree, but at 10 years old it probably will be the converter.

[http://www.northeasterncat.com/search.aspx?year=2002&make=Toyota&model=Tacoma&enginebase=2.4L%20L4%202438cc](http://www.northeasterncat.com/search.aspx?year=2002&make=Toyota&model=Tacoma&enginebase=2.4L%20L4%202438cc)

And installation on this vehicle is relatively easy. You may need a new upsteam oxygenm sensor too, as the old one will probably be permanently fused to the bung hole.

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**Author:** ![lyrehc](https://avatars.discourse-cdn.com/v4/letter/l/4bbf92/32.png) [@lyrehc](https://community.cartalk.com/u/lyrehc)\
**Post date:** [May 21, 2013, 1:58am UTC](https://community.cartalk.com/t/toyota-tacoma-2002-check-engine-light/79427/7 "2013-05-21T01:58:03Z")

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Thank you