# Stupid o2j...... Waiting for the I told you so from MK30R.

**URL:** <https://forums.speedlife.net/t/stupid-o2j-waiting-for-the-i-told-you-so-from-mk30r/250398>\
**Category:** Shift518 Automotive\
**Created:** [February 18, 2010, 5:46am UTC](https://forums.speedlife.net/t/stupid-o2j-waiting-for-the-i-told-you-so-from-mk30r/250398 "2010-02-18T05:46:18Z")\
**Posts on this page:** 1\
**Showing post:** 37

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**Author:** ![KrazyKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/krazykid/32/6371_2.png) [@KrazyKid](https://forums.speedlife.net/u/KrazyKid)\
**Post date:** [February 23, 2010, 5:42am UTC](https://forums.speedlife.net/t/stupid-o2j-waiting-for-the-i-told-you-so-from-mk30r/250398/37 "2010-02-23T05:42:29Z")

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> [@Section of the 290 to be closed tomorrow (5/18)](https://forums.speedlife.net/t/section-of-the-290-to-be-closed-tomorrow-5-18/29509/7):
>
> should have gotten a .63 35R if you wanted room to grow:excited
> 
> sell ya an AEB. \<70k on it. no sludge, off a running car. with cams and tensioner.
> 
> that shouldnt be an issue. what i read in your post is silly. that idle AFR would make driveability terrible. i could never deal with that.
> 
> and id hope you have no pull at 16psi. run some man boost and see how shes doing. :thumbup

I will keep that in mind for the aeb, when i come up with $$ ill let you know. I have been expierementing with the idle afr thing. If I jump off the clutch it plummets to 10.0 like a rock and 3-5 secs later it climbs back up to 12.7 and sits around there.

If I get off the clutch easy and hold the throttle a touch and dont let it rev down like a stone, it only drops to like 11.5 and instantly catches then goes right to 12.7 ish.

I think it has alot to do with my lightweight FW and the motor not seeing the load it thinks it should when it idles down. The same FW and my APR did the same sorta thing, dropped bellow idle bogged for a sec then took afew seconds to come back up and smooth. Jims VR with the light weight FW does the same thing. I am going to look at the load readouts a bit more and see if that sheds some light on it.

The driveability isnt bad, it doenst buck or shutter or anything. If its at idle I am parked, or about to be so it doesnt matter much… just a lot of wasted fuel, slow warm up times and dirty plugs/o2’s.

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