# running lean/rmp limiter

**URL:** <https://forums.speedlife.net/t/running-lean-rmp-limiter/102877>\
**Category:** SON240sx Automotive\
**Created:** [January 7, 2007, 9:33pm UTC](https://forums.speedlife.net/t/running-lean-rmp-limiter/102877 "2007-01-07T21:33:20Z")\
**Posts on this page:** 1\
**Showing post:** 8

<div class="post-metadata">

**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 8, 2007, 3:00pm UTC](https://forums.speedlife.net/t/running-lean-rmp-limiter/102877/8 "2007-01-08T15:00:52Z")

</div>

> [@dreamweaver is a blast!](https://forums.speedlife.net/t/dreamweaver-is-a-blast/10830/7):
>
> well my car does not have no o2 sensor. at the moment…so i just want to know if that would make me run lean? it is a next investment as of friday with a new exhaust.
> 
> i will try to get it to 8500 and once. no more. lol dont want to mess anything else.  
> as for not getting speed limit, well i was in 5th gear at about 6000 rpm and my needle was alot past 180 thats for sure

Not having an O2 Sensor will make you run stupid rich… You must be getting some horrible fuel milage dude… I doubt you’ll have any lean issues 😉

---

_[View the full topic](https://forums.speedlife.net/t/running-lean-rmp-limiter/102877)._