# CRX tach ?

**URL:** <https://forums.speedlife.net/t/crx-tach/189440>\
**Category:** PittSpeed Automotive\
**Created:** [April 22, 2007, 2:29pm UTC](https://forums.speedlife.net/t/crx-tach/189440 "2007-04-22T14:29:30Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![OCRNotch](https://avatars.discourse-cdn.com/v4/letter/o/b38774/32.png) [@OCRNotch](https://forums.speedlife.net/u/OCRNotch)\
**Post date:** [April 22, 2007, 2:29pm UTC](https://forums.speedlife.net/t/crx-tach/189440/1 "2007-04-22T14:29:30Z")

</div>

My factory tach always screws up and is off so i got an aftermarket… I know you use the negative side of the coil… I can’t follow that wire right so is there another wire i can use or what? Any help would be appreciated thanks.