# why is it runnin so rich **URL:** \ **Category:** SON240sx Automotive\ **Created:** [January 26, 2006, 6:49pm UTC](https://forums.speedlife.net/t/why-is-it-runnin-so-rich/92297 "2006-01-26T18:49:04Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Ka24](https://avatars.discourse-cdn.com/v4/letter/k/d6d6ee/32.png) [@Ka24](https://forums.speedlife.net/u/Ka24)\ **Post date:** [January 26, 2006, 6:49pm UTC](https://forums.speedlife.net/t/why-is-it-runnin-so-rich/92297/1 "2006-01-26T18:49:04Z")
like my name says cars runnin so rich like uses tons of gas and comes out the exhuast ---
**Author:** ![DePhrag](https://avatars.discourse-cdn.com/v4/letter/d/4bbf92/32.png) [@DePhrag](https://forums.speedlife.net/u/DePhrag)\ **Post date:** [January 26, 2006, 7:08pm UTC](https://forums.speedlife.net/t/why-is-it-runnin-so-rich/92297/2 "2006-01-26T19:08:08Z")
You’re filling the gas tank up too full. Try only putting in a half litre at a time. ---
**Author:** ![Ed1](https://avatars.discourse-cdn.com/v4/letter/e/958977/32.png) [@Ed1](https://forums.speedlife.net/u/Ed1)\ **Post date:** [January 26, 2006, 7:10pm UTC](https://forums.speedlife.net/t/why-is-it-runnin-so-rich/92297/3 "2006-01-26T19:10:20Z")
> [@DePhrag](#): > > You’re filling the gas tank up too full. Try only putting in a half litre at a time. how the heck does that work?! ---
**Author:** ![Ka24](https://avatars.discourse-cdn.com/v4/letter/k/d6d6ee/32.png) [@Ka24](https://forums.speedlife.net/u/Ka24)\ **Post date:** [January 29, 2006, 5:35pm UTC](https://forums.speedlife.net/t/why-is-it-runnin-so-rich/92297/4 "2006-01-29T17:35:29Z")
wtf?.. that doesnt really make any sense to me… but theres hella carbon in my exhuast i have no idea why its runnin like this ---
**Author:** ![Born2drift](https://avatars.discourse-cdn.com/v4/letter/b/35a633/32.png) [@Born2drift](https://forums.speedlife.net/u/Born2drift)\ **Post date:** [January 30, 2006, 3:31am UTC](https://forums.speedlife.net/t/why-is-it-runnin-so-rich/92297/5 "2006-01-30T03:31:14Z")
Try looking at ur O2 sensor could be faulty if so then ur possible clogging ur cat as well its dont like tons o fuel…just my thought Cheers chris ---
**Author:** ![Jedi\_Car\_Fan](https://avatars.discourse-cdn.com/v4/letter/j/b9e5f3/32.png) [@Jedi\_Car\_Fan](https://forums.speedlife.net/u/Jedi_Car_Fan)\ **Post date:** [January 30, 2006, 12:27pm UTC](https://forums.speedlife.net/t/why-is-it-runnin-so-rich/92297/6 "2006-01-30T12:27:25Z")
Check your TPS “Throttle Position Sensor” and your o2 Sensor. If either was unplugged or faulty/not working proper then they would each cause the Engine to want to run rich. Check the ECU and see if its flashing any codes as well… ---
**Author:** ![Hector](https://avatars.discourse-cdn.com/v4/letter/h/43a26b/32.png) [@Hector](https://forums.speedlife.net/u/Hector)\ **Post date:** [January 30, 2006, 12:58pm UTC](https://forums.speedlife.net/t/why-is-it-runnin-so-rich/92297/7 "2006-01-30T12:58:52Z")
u need a new fuel dispersment valve, some times the valve gets all fucked up and lets too much gas into the lines because it sees that ur tank has alot of gas in it , thats why dePhrag said only use half a litre at a time , that way it only sences that u have very little fuel and goes in to the low fuel level map thus bypassing the fuel disperment valve and giving u better milage… duh ---
**Author:** ![Ka24](https://avatars.discourse-cdn.com/v4/letter/k/d6d6ee/32.png) [@Ka24](https://forums.speedlife.net/u/Ka24)\ **Post date:** [February 5, 2006, 6:35pm UTC](https://forums.speedlife.net/t/why-is-it-runnin-so-rich/92297/8 "2006-02-05T18:35:04Z")
the cats compelelty cloged i kept blowin it open when i reved it even past 4 gutted it out put a new o2… done