Originally Posted by iTune

Tehpra, any word on the possibility to use the launch maps as a software anti-lag for in between shifts? I've been interested on making this work for awhile now.

Still trying to make the ECU lower the timing retard limit past -10 though....still no luck.

Originally Posted by mrfred

I've been sniffing around the subroutine that sets the ignition retard limit, and it appears that in the newer ROMs, there are two ignition retard limit tables that are used for two different operating conditions. Not sure yet on what conditions these are, but here are the two tables for the 8859XX15 and the 9653XX06. They may both need to be set more neg for ignition to retard further under all conditions. Note that the max possible neg value is about -28 deg. Should be easy for people running newer JDM, EDM, and ADM ROMs to find the additional table by comparing the offset between the two addresses.

8859XX15:

<scaling name="IgnTimingECUa" units="deg" toexpr="61-x*90/256" frexpr="(61-x)*256/90" format="%.1f" min="-30" max="50" inc="1" storagetype="uint16" endian="big"/>
<table name="Ignition Retard Limit #1" category="Timing" address="205e" type="1D" level="1" scaling="IgnTimingECUa"/>
<table name="Ignition Retard Limit #2" category="Timing" address="133e" type="1D" level="1" scaling="IgnTimingECUa"/>

9653XX06:

<scaling name="IgnTimingECUa" units="deg" toexpr="61-x*90/256" frexpr="(61-x)*256/90" format="%.1f" min="-30" max="50" inc="1" storagetype="uint16" endian="big"/>
<table name="Ignition Retard Limit #1" category="Timing" address="2438" type="1D" level="1" scaling="IgnTimingECUa"/>
<table name="Ignition Retard Limit #2" category="Timing" address="173e" type="1D" level="1" scaling="IgnTimingECUa"/>

88570008-88570014, 88580013-88580015, 88840016, 88900006

<scaling name="IgnTimingECUa" units="deg" toexpr="61-x*90/256" frexpr="(61-x)*256/90" format="%.1f" min="-30" max="50" inc="1" storagetype="uint16" endian="big"/>
<table name="Ignition Retard Limit #1" category="Timing" address="2038" type="1D" level="1" scaling="IgnTimingECUa"/>
<table name="Ignition Retard Limit #2" category="Timing" address="133e" type="1D" level="1" scaling="IgnTimingECUa"/>


9417XXXX has only one ignition retard limit table:

<scaling name="IgnTimingECUa" units="deg" toexpr="61-x*90/256" frexpr="(61-x)*256/90" format="%.1f" min="-30" max="50" inc="1" storagetype="uint16" endian="big"/>
<table name="Ignition Retard Limit #2" category="Timing" address="173e" type="1D" level="1" scaling="IgnTimingECUa"/>

Originally Posted by Seijuro

Here you go.

EDIT: You may need to alter the Category in the code below to get it to show up where you want it! For example, I changed the Category from "Ignition" to "Global Ignition Settings"

ALSO: I found that I already had the IgnTimingECUa scaling defined in my XML, so all I needed were the 2 table definitions.

Originally Posted by iTune

Yeah, i have been trying to get my xml to work with this code. I'm using the 96350706 ROM. What ROM are you using?

Originally Posted by Seijuro

The same thing basically, I'm using 96532706 so I can use livemaps.

My 96530706 XML is attached (renamed to .txt). I don't know if it would just work for you to swap out, but maybe you can cut and paste over the code you need.

EDIT: Looking this over, I was mistaken about the scaling when I said it was already defined. I did not have it and I needed to add it. I mixed that scaling up with something else I was doing the same day for which the scaling was already defined. Oops.

Originally Posted by iTune

Oh word....Thanks man! This worked wonderfully...now it's time to properly test. I'm gonna try -20 as the values and see if i can log it hitting that low, then work my way back up from there....as i feel i only really need about -17-18 or so to produce the effect i'm looking for.

BTW, i just pasted in your code into the same spots you had them in the .xml. I spent countless hours trying to get this to work properly, and eventually dicked my EcuFlash install and had to start over...haha. Your code worked like a charm. Thanks bro!

Originally Posted by Seijuro

Cool man glad I could help. World of difference in how fast the turbo spools at -20 vs -10. It's not nearly as violent either.

Originally Posted by Skylineracer

where do u and how do u add the xml data?

Originally Posted by Skylineracer

i can;t get it to come up in ecu flash

Originally Posted by iTune

Just got finished logging. Can't seem to get the ignition timing to log below -10, with the exception of a few cells(brief second). I tried a few different settings, but i edited both tables with the same values. Not sure how to get this to work properly.

Thanks again!

Originally Posted by iTune

I was just looking at your info....seems you have a IX...so, you don't want to use this code for your ECU....refer to this thread https://www.evolutionm.net/forums/ec...d-limit-5.html post # 74 for info on your ROM..


DO NOT FLASH YOUR ECU WITH THE CODE WE POSTED....it's for a different ROM(96530706).....you can screw something up if you attempt this. Again, refer to the link above...post #74.

Originally Posted by Skylineracer

no yeah i understood that i need to use the ix code but i can't get it to come up in ecuflash