This just started hapening recently. I'm using uberdata and 450cc's. So when I'm driving, my lambda air/fuel guauge reads super lean in closed loop, then it will go to normal again when I step on it enough to activate open loop, then back to super lean after I ease up on throttle. This happens even when I deactivate open loop and run only in closed loop. I'm thinking bad O2 sensor, or maybe fuel settings in in Uberdata are too low to keep injectors open? Usually heppens when cruising in 5th at very low throttle. Anyone have similar problems? After a few minutes it will run fine again...

Thanks


Modified by pipes at 7:28 PM 5/4/2005

 

do you have open loop / closed loop backwards? open loop = WOT/boost

i havent been in FI for a while, is uberdata real popular now?

 

are you using a wideband? If not, it sounds like fuel cut to me.

 

sorry yes, allow me to fix post...

To answer your question, I havent been online much but Uberdata seems to be getting big for engine management.

 

yes the reading was from a wideband. It seems exactly like a fuel cut, but why....

 

you can't disable open loop in uberdata

 

Turn off closed loop entirely.

 

how would I do that?

 

go under the miscellanious tab in uberdata and disable it.

 

What A/F represents "super lean"?


Just wondering.

 

yeah I disabled O2 heater, I thought there was another way...

By super lean I meant I was in the 17's.