# 2004 Mazda MPV - reuse or replace coils?

**URL:** <https://community.cartalk.com/t/2004-mazda-mpv-reuse-or-replace-coils/134862>\
**Category:** Maintenance/Repairs\
**Tags:** mpv, mazda\
**Created:** [February 18, 2019, 1:22am UTC](https://community.cartalk.com/t/2004-mazda-mpv-reuse-or-replace-coils/134862 "2019-02-18T01:22:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![CC57](https://avatars.discourse-cdn.com/v4/letter/c/f4b2a3/32.png) [@CC57](https://community.cartalk.com/u/CC57)\
**Post date:** [February 18, 2019, 1:22am UTC](https://community.cartalk.com/t/2004-mazda-mpv-reuse-or-replace-coils/134862/1 "2019-02-18T01:22:58Z")

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I’m replacing spark plugs on a mazda mpv and I want to be sure the coils are ok to reuse or need to be replaced. I’ve measured primary and secondary resistance values and they are all close, but I can’t find the specs anywhere. Thanks for any/all ideas.

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**Author:** ![NYBo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nybo/32/17281_2.png) [@NYBo](https://community.cartalk.com/u/NYBo)\
**Post date:** [February 18, 2019, 12:09pm UTC](https://community.cartalk.com/t/2004-mazda-mpv-reuse-or-replace-coils/134862/2 "2019-02-18T12:09:53Z")

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If you don’t have any misfire codes and the the coils aren’t physically damaged, I wouldn’t bother replacing them. If the boots are available separately, I would replace those, given the age of the vehicle.