# 2004 Mazda 6, 2.3l kicking code P2187 Bank 1 (as if there's any other bank) lean at idle

**URL:** <https://community.cartalk.com/t/2004-mazda-6-2-3l-kicking-code-p2187-bank-1-as-if-theres-any-other-bank-lean-at-idle/66323>\
**Category:** Maintenance/Repairs\
**Created:** [July 17, 2011, 3:04am UTC](https://community.cartalk.com/t/2004-mazda-6-2-3l-kicking-code-p2187-bank-1-as-if-theres-any-other-bank-lean-at-idle/66323 "2011-07-17T03:04:33Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Cherokeeboogieman](https://avatars.discourse-cdn.com/v4/letter/c/ac8455/32.png) [@Cherokeeboogieman](https://community.cartalk.com/u/Cherokeeboogieman)\
**Post date:** [July 17, 2011, 3:04am UTC](https://community.cartalk.com/t/2004-mazda-6-2-3l-kicking-code-p2187-bank-1-as-if-theres-any-other-bank-lean-at-idle/66323/1 "2011-07-17T03:04:33Z")

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I’m currently being puzzled by this vehicle. Any simple solutions out there for this simpleton?

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**Author:** ![circuitsmith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/circuitsmith/32/40376_2.png) [@circuitsmith](https://community.cartalk.com/u/circuitsmith)\
**Post date:** [July 18, 2011, 3:28pm UTC](https://community.cartalk.com/t/2004-mazda-6-2-3l-kicking-code-p2187-bank-1-as-if-theres-any-other-bank-lean-at-idle/66323/2 "2011-07-18T15:28:35Z")

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Look for a vacuum leak.

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**Author:** ![Cherokeeboogieman](https://avatars.discourse-cdn.com/v4/letter/c/ac8455/32.png) [@Cherokeeboogieman](https://community.cartalk.com/u/Cherokeeboogieman)\
**Post date:** [July 19, 2011, 12:58am UTC](https://community.cartalk.com/t/2004-mazda-6-2-3l-kicking-code-p2187-bank-1-as-if-theres-any-other-bank-lean-at-idle/66323/3 "2011-07-19T00:58:30Z")

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That’s pretty much what I was thinking, too, although the car seems to run pretty smooth. I researched it a bit, and a likely culprit may be the MAF sensor. Seems like every time I run into this code on a Ford, it ends up being PCV related, with the car idling bad.