Rich tip in is probably the VE too high.

 

Gotcha I'll play with the settings see if i can't figure it out

Edit:

Heh been playing with this all day. I think i finally have settled onto some settings that work pretty damn well all around but i seem to have stumbled into some lean tip in now which VE doesn't seem to fix. I think you ran into this too awhile back in this thread.

 

I'm sorry if I'm missing something, but you don't mean running SD on the stock IAT sensor output do you?

 

Probably means most like the GM sensor on the IAT wire.

 

Since this SD system uses addresses for the MAF to fit neatly in the stock code does MAF scaling matter?

I ask because I drive a 2g Eclipse and I'm using my stock MAF which is scaled (to a mediocre degree, I just borrowed someone else's scaling) to match the significantly lower flow/hz.

So when I get to set up SD do I just return my scaling to stock evo scaling, put it all together, unplug my MAF, and feel my way out of the box without previous logs to start matching things up or do I keep my scaling and not worry about how much resolution I might lose?

I do have a wideband so I can avoid dangerously lean situations for the most part when I'm trying to just dial in the idle and low load stuff, it is the high load stuff that will be scary.

I guess I could log everything using my current scaling then cross-multiply to get a ratio of the difference so that I'm somewhat close.

Does anyone have any thoughts or suggestions on this?

 

I think you would just keep your original scaling and follow the same procedure outlined here for an Evo.

 

This thread may help you a bit.

 

I have edm evo9 88840017, want to convert my car to sd. Have experts looked at this possibility ? iat and map is not a big problem imo, but who can have time to convert not popular 88840017 to sd...

 

Just run 88570008, it has more toys and works I believe. It gets very old doing conversions to lots of ECUs, and at present I have zero time available.

 

I think 88570008 will not start on edm gsr.. I will try today.
I think it must have differences in some hardware, but im not sure

 

It needs periphery and immobiliser changes I gather, but I can start USDM on my JDM, and I'm sure someone used 8857 on EDM and USDM.

 

banks what do you consider the best way of setting the VE on this patch? Should i disable open loop and see if the VE's can be set in that manner? Or just logging the STFT and seeing how the ecu is trying to compensate and make changes.

Guidance would be much appreciated.

 

On my setup I used MAF logging to get initial VE settings, then I used fuel trims to get things a bit closer without having to drive a car with uncontrolled lean and rich spots. I think I can improve on my current VE tables by disabling closed loop and getting things a bit closer. Haven't had time to do that yet.

-Paul

 

Gotcha when i did a VE test it was all over the map like 68% at idle to like 116% at boost. Even 1000rpm have a swing from 70% to 85% so i'm confused as to what i should enter into this thing.

 

hehe wow i did a test today and turned off the closed loop my AFR's shot down to 11's.

I ended sticking my VE down near 70% to make it happy then adjusted the map to load deal so when you gave it some throttle it didn't go slightly lean. Interestingly when i put the closed loop back on it was slightly leaner than without. I again adjusted my VE to a little richer to compensate. Its getting closer now lol!