# My mpgs are suckingggg help!

**URL:** <https://forums.speedlife.net/t/my-mpgs-are-suckingggg-help/263445>\
**Category:** Shift518 Automotive\
**Created:** [April 18, 2012, 8:49am UTC](https://forums.speedlife.net/t/my-mpgs-are-suckingggg-help/263445 "2012-04-18T08:49:02Z")\
**Posts on this page:** 1\
**Showing post:** 29

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**Author:** ![usmc2801](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/usmc2801/32/6387_2.png) [@usmc2801](https://forums.speedlife.net/u/usmc2801)\
**Post date:** [April 18, 2012, 11:50am UTC](https://forums.speedlife.net/t/my-mpgs-are-suckingggg-help/263445/29 "2012-04-18T11:50:11Z")

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> [@HAPPY BIRTHDAY CHOKO!!!](https://forums.speedlife.net/t/happy-birthday-choko/49190/18):
>
> change front o2 only. Try a sparkplug defouler on the rear o2.

This!

Worked on my Subaru for the cat code, I have a drilled out anti-fouler if you want it, the package comes with two and I only needed the one. LMK.

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