Hondata

Ive been tryin to log the fuel changes and to get a smoothe AFR.. but ill do it cruising and WOT and everytime it says to take away like 15% ill take away 10% and then it goes lean.. so im trying to figure out why that is happening..

ECT is constant 177 degree's
IAT is 65-72 < J's racing intake with IAT mounted in the coupler of the intake since my intake manifold does not have one.

I didnt save my logging files.

I may be logging it all wrong but just incase can someone tell me the proper way to use this feature? cause i dont think im doing it wrong but i could be

Is it only one cell that says needs to be changed?

nah when i log it it shows up several cell's to take fuel away. and when i take fuel away ill only take away part of it. i never take the full amount that it says to take away and for some reason it will go lean

What lambda sensor and what injectors are you using?

Stock 240cc injectors and PLX m300 wideband

The recommended fuel change is normally fairly close. Here's some hints: Make sure that SManager reads the same AF as the m300. With the latest version there is an voltage offset adjustment to make matching the AF values easier. Don't add/change fuel from a datalog with a lot of transitional driving. The best way to do part throttle fuel tuning is to datalog with a constant throttle opening from low rpm to around 5000 rpm. Try to keep the map tracing going down a column (2 columns actually). Only start datalogging once you have a steady throttle opening, and finish datalogging before you let off the throttle.