RomRaider

Looking for any guidance or assistance here... Searched and searched with no avail.

Updated the standard values of 700 to 950 on Idle Speed Target A, B, C, and D.
Flashed to car, re-read back, values are there.
Warmup as normal, starts to drop thru has coolant temps increase, just continues down to 700 +/-.

At a loss here, feel like I'm missing another parameter to make this work (or possibly the map def is using the wrong register).

Register values i have are:
A @ e1a82
B @ e1ac2
C @ e1b02
D @ e1b42
(E and F are undefined, but I also have not found anything saying E & F would require a change)

Thank you to the community in advance for the help!

Assuming I have it right in my rom (I haven't tried to adjust it), you may want to try:

Idle Speed Target A - E1A62
Idle Speed Target B - E1AA2
Idle Speed Target C - E1AE2
Idle Speed Target D - E1B82

You may also want to look at "Target Throttle Angle Idle Airflow Base Minimum Applied Maximum" - E0D28 to make sure it is not limiting you. Factory is 7.74% throttle, not sure if 900 RPM can be achieved below that. I think it's somewhere close to that.

Thanks, will give that a try. I assume the rom you are referring to is same as I've posted, would appreciate confirmation.

FWIW - In regards to the Throttle Opening Angle - at 5.5% I am at 1500RPM (stationary, revving engine), so not thinking that table will require adjustment.

I opened your .bin and matched the code against the AE5T201V (2016 USDM STi) my car had stock and also the AE5R100V I currently running. The code for the addresses I gave you match both of mine. Like I said, I haven't tested it so I could be wrong, but it looks right to me.

I don't know if you're interested, but a while back I posted a lot of the definitions for the AE5R100V, which I switched to so I could use MerpMod. Since your rom is starts with AE5..., you could probably flash the AE5R100V in without any issues and have a lot more tables to work with.

Thanks for the info... I'll try the different addresses first and see if that changes anything.

Greatly appreciate your help.

Didn't want to leave the thread hanging, but the new addresses you provided worked perfectly. Now I am questioning some of the other locations I have, it may explain some of the challenges I have been having with tuning the car... :/

Great. Thanks for the follow up. What other issues are you having? I may have some time in the next few days to look through it some more.

Very much appreciate the help @rsimmons1122 - might you (or the community) be able to check 3 other tables for me?

Minimum Tip-in Enrichment Activation [d134c] (I'm reading a stock value of 1.20ms but believe it should be 0.280ms)
Throttle Tip-in Enrichment A [d3ea0] (values match stock)
Throttle Tip-in Enrichment B [d3f0c] (values match stock)

Comparison values done on the stock AE5W100V rom.

Thanks in advance!

Aside - Idling like a charm now

Sorry for the delay.

From what I can see those addresses appear to be right. For the Min Tip-in Enrichment though, there is a .004 multiplier in the definitions that converts to milliseconds. 280*.004 = 1.120 which is what I have for the stock value.

What's the car doing that you're trying to sort out?

Sorry for delay here as well...

Been trying to sort out a roughness issue, that is only prevalent between 2-3k RPM, no load. Haven't road tested since the roughness is pretty significant and can be felt. Idle is great, trims a very good, and over 3k, purrs like it should. Done a LOT of research and testing with no success yet. Lots of mods, but the relevant ones would be the AMS intake mani with ID1050x on an AIG Block with GSC S1 cams, Cobb SF, AIG Rails, Lines, AOS, Cobb FMIC, Aeromotive FPR. Done all the vac / boost leak tests, grounds, etc etc, over and over. Feeling like a tune issue, so now attempting to move the EOI earlier to account for the lack of tumble and better flow characteristics of the AMS mani. These tables are defined, but changing did not have any effect. Next is to get the scope out to see if it is actually injecting earlier, but I would have thought i'd see something in the logs.

End of Injection Cruise [d4e80]
End of Injection Non-Cruise [d4f74]
Engine Load Comp Cruise [c4ba0]
Engine Load Comp Non-Cruise [c4d20]

(Added the comp tables since it appears the load is being comp'd for based on MAP, but still validating.)

Thanks!
Chris

I compared the addresses you gave with mine and they all look right to me. I assume with all those mods that you have a wideband. What are you seeing there when you hit the rough spot?

Also, what are your cams doing in that area? I had a similar problem awhile back when I was trying to improve cruise gas mileage it ended up being too much overlap.

Not sure how much time you've put into load comps, but intake mani, intake, FMIC, and cams are all going to have an effect on that. I'd suggest spending some time trying to tune that. Honestly with that many mods related to airflow, I would consider zeroing the tables out and starting over.

Thanks so much for comparing and keeping this thread going...

Yes, Wideband. However, using the stock for CL operation - wideband is at the top of the Cobb DP and reads just a tad higher than stock, which i understand is normal based on the position further downstream. WB readings look +/-2% of stoich even during the 2-3k events.

In regards to the cams - GSC S1 DUAL AVCS *EDIT* have about 29 deg of overlap at 0 AVCS (currently AVCS is zero'd below 0.3 g/s so they would not be in play).

ref: https://www.power-division.com/billet-s ... -avcs.html

Comp tables are Zero'd, was going to start there today, but have little direction based on STFT as to 'how much' to change.

Are you not over 0.3g/s in the 2-3k range? I'm sure you don't have them suddenly jump after that though maybe not the problem. For the load comp tables, I don't know that you can do without a scaling tool. At least I know I certainly couldn't do it on my own. I use the maf scaling tool in this post to do most of my adjustments. https://www.romraider.com/forum/viewtopic.php?f=32&t=10481&hilit=scaling+tool
If you open that and go to the usage tab on the left side it will tell you what to log and give some decent directions on how to use it. It has several other features that are pretty helpful too. I would definitely go that route. I know there are other tools and spreadsheets out there if you do a search, but this is the one that I have always used and it as worked pretty well for me.

Yeah, doesn't jump above 0.3g/s. I will try out the tool today.

Upload of logfile in case you were interested. Decently long run thru holding a different set of RPM ranges (while stationary).

Oh the car is not moving, I see why your load is staying that low then. I thought this was while driving. A few things to add after looking at this.

First, I would disable the AF #3 learning. This is making adjustments from the post cat sensor and it will likely cause you trouble and continue to change in ways that will make your other fueling unpredictable. At the moment it is making a making -2% to +2% changes in the 1600-3300 RPM range. I would definitely disable this by setting the correction limits and learning limits to 0.

I realize you're trying to troubleshoot something, but it would probably help out to eliminate a lot of the things your logging. It will allow better data resolution so if there is something happening very quickly, it will be easier to see. At least until you have this issue worked out, you could easily cut out all the individual cylinder knock and roughness, learned ignition timing, and target boost. Also, use only one of the engine loads (I would prefer losing the 1-byte data), same with the IAM and MAP. Not sure if you have the AEM UEGO setup correctly, but that doesn't appear to be collecting any data, but also I see fuel in both lambda and AFR. Of course use whatever you are most comfortable with, but it would likely be easier to choose between those and use only that. This would allow you to cut a few more things out of your logs.

Also, I want to mention something that gave me a little bit of trouble at first using that scaling tool. you have to always have something to into the very first cell or it won't accept any of it. It is a little annoying sometimes. I'm using ECUFlash, so I don't remember how the table structure is in romraider when copying a table, but what I do is I copy the table into Excel and leave the top left cell blank, then copy the whole table and past it into the tool.

Oh and last thing, to be able to scale the load comp tables you will also need to log he manifold relative pressure.

Hope some of this helps, let me know what you find.