DNMakinson

iTrader: (3)

I have had this effect for some time. Above 6K, I start getting squiggly PW. Some is likely due to an unsteady MAP signal, but the EAE seems to amplify the issue.
MS3 on a 99, with return fueling. Stock engine with TD04 micro turbo. Pulls are in 3rd gear (of 6) uphill for longer action.

I have not tried turning EAE off to see the results, but I'll likely do that tomorrow. What I have done is totally flattened the main EAE ATW and SFW vs MAP, so that even the unsteady MAP should not result in an unsteady EAE (As I understand things). I also ran a pull at 180kPa instead of 200kPa, and the results are quite similar. @Ted75zcar

I have attached my tune and a log. Pulls are near the start of the log, and a screen shot is here:


DNM

Ted75zcar

iTrader: (2)

EAE is pretty black magic. Zoom in on the wiggy section and plot EAE and EAE load. You will see that there is a strong correlation. Your MAP is pretty jumpy in this area, so that is most likely what is causing the EAE jumpiness.

Couple of thoughts/observations:

• In general settings, your averaging factors for both RPM and MAP are really aggressive (weak filters). For reference, I use a 50% averaging factor for MAP and 25% for RPM. These are processes that do not physically change quickly.
• On all of the installs that I have tuned EAE, ATWrpm is sub 10% by around 4kRPM and SFWrpm is over 125%. If you think about this from a conceptual perspective it makes sense. At high RPM fuel will not be going into the puddle, it will be sucked from the puddle due to the high intake air velocity. Ultimately this will have the effect of significantly reducing the sensitivity to EAE load at high RPM.

DNMakinson

iTrader: (3)

Good observation on filters. I was wondering if I should adjust the MAP filter.

I agree that there should be little Wall Fuel at high RPM. I just did not know how important it would be to match reality in that area, as EAE generally went to 100% up there.

I was hoping you could suggest how to reduce the sensitivity, and you have.

Thanks. I may not be as aggressive as you suggest, but will move in that direction. This is because my base tuning is at 3K, which by definition will remain 100%.

DNM

Ted75zcar

iTrader: (2)

At a steady state operating point EAE will always go to 100. 100 is where adhere = sucked x WF, WF increases (adhere > sucked x WF) or decreases (adhere < sucked x WF) to whatever value makes this statement true.

DNMakinson

iTrader: (3)

Yes... EAE is for transients.

Changing the filters made a significant improvement.

Changing the RPM multipliers does help drive the Wall Fuel down, as it should.

Thanks again.

DNM