# Who has a Coil-on-pack for a Mustang I can use?

**URL:** <https://forums.speedlife.net/t/who-has-a-coil-on-pack-for-a-mustang-i-can-use/37174>\
**Category:** NYSpeed Automotive\
**Created:** [October 17, 2007, 8:07pm UTC](https://forums.speedlife.net/t/who-has-a-coil-on-pack-for-a-mustang-i-can-use/37174 "2007-10-17T20:07:19Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![Violator](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/violator/32/7278_2.png) [@Violator](https://forums.speedlife.net/u/Violator)\
**Post date:** [October 18, 2007, 2:16pm UTC](https://forums.speedlife.net/t/who-has-a-coil-on-pack-for-a-mustang-i-can-use/37174/7 "2007-10-18T14:16:37Z")

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if you have a multimeter… check the primary coil impedance and compare it to a known good coil… then do the same for the secondary

edit:  
if you switched the coils and its still not firing then change the plug as well.

If that doesnt work then you have a wiring problem. Check for pinched wires or any places they may have rubbed through.

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