Could u tell me how and where you put the value 255?
Thanks

 

Realize this change hasn't been fully confirmed that it doesn't affect anything else.

Edit: Added to first post as even 1 page in the post is being missed.

 

what else does it have the possibility to affect? what else references this table?

 

I'm not saying it does. Mrfred is potentially looking at it to make sure it doesn't carry affects further into the rom.

 

I'll look at it more this evening. Plan on revised SD patches being posted in my SD patch download thread.

 

Thanks alot, flew right by it. Will tes tit tomorrow.

 

Frikkin' awesome..I can't wait to revisit SD.

 

I'll give this a test tomorrow as well. Great work guys, I don't know where the Evo community would be right now if it wasn't for all the hard work you guys pour into this stuff. I really wish I was able to help out with disassembly, but me trying to figure that stuff out at the moment is like trying to figure out what women want lol.

 

Nah...
Women are simple.

Wives on the other hand...

^^ha ha, the kid from Utah uses "wives"

 

Guess the western women aren't too bad, east coast women are brutal lol.

Anyway, solid work right here.

 

It works! It works! At cruise, at any speed (specifically 1800-2800rpm) the car drives SMOOTH AS SILK! I will be logging over the next few days to verify nothing else is changed but I'm confident that this was something that only affected airflow levels at cruise.

Thank you mrfred, I'm SO HAPPY!

 

IX's do in fact do the same thing. It was something I thought I was going to have to live with and go from there. Some ROMs are a little less prone (the 94170015 and 8859) than others but the 9653 is so bad I have swapped 05s to 03-04 computers to get rid of the issue...or at least lessen it.

 

Good. Helps when predictions line up with reality.

 

I've been through the subroutine in the 9653 and 8859 ROMs that determines the weighting factor for the running master load average. After looking at both subroutines, its become clear that setting the over/under value to 255 will fix the low rpm stutter, but it will limit the load-based acceleration enrichment under light-to-moderate load conditions, so this may not be the best solution.

I have found another way to stop the low load stuttering while still allowing the standard range of load-based acceleration enrichment.

1) Add the following table to your xml file:

9653 ROMs:

<table name="Scaling Factor for Transition Load" category="Speed Density Programming" address="1630" type="1D" level="1" scaling="uint16"/>

8859XX15 ROMs:

<table name="Scaling Factor for Transition Load" category="Speed Density Programming" address="1230" type="1D" level="1" scaling="uint16"/>

2) The value in this table should be 112. Change it to 0.

3) Set "MAF Pulse Width Reset" back to the stock value of 205.

Let me know how that works.

 

It's interesting that you say that as I had noticed some different acceleration enrichment type behavior. I wasn't sure if it was just my mind playing tricks on me though.

I'll make the change and report back.