My xml for the warmup ignition retard is also off. Not sure if it has been corrected since I downloaded it.

 

Appauldd, didnt mean to confuse anyone. I was curious where the base deffinitions for that table came from. I just found it. The location of where the temp table is read is different in the new 0715.xml. The older .xml's utulize a different memory address... I dont remember this being discussed, why the change of the lookup? Also, should I just change my deffinitions for the older V.5 rom to get this buggy idle straightined out? Once I work out the kinks i will move to 7. and fine tune from there.

Either way here is the scalings:

0015 XML:
<table name="Desired ISCV intial step position with AC off-Neutral" address="4276">
<table name="Engine Temp" address="68b8" elements="8"/>
</table>

EVO7Base XML:
<table name="Desired ISCV intial step position with AC off-Neutral" category="Idle" type="2D" scaling="ISCVSteps">
<table name="Engine Temp" type="Y Axis" elements="8" scaling="Temp"/>
</table>

EVO7 Base 20081101:
<table name="Desired ISCV intial step position with AC off-Neutral" category="Idle" type="2D" scaling="ISCVSteps">
<table name="Engine Temp" type="Y Axis" elements="8" scaling="Temp"/>
</table>

0015 Patched.xml:
<table name="Desired ISCV intial step position with AC off-Neutral" address="4276">
<table name="Engine Temp" address="68b8" elements="8"/>
</table>

EVO7 Base Patched.xml:
<table name="Desired ISCV intial step position with AC off-Neutral" category="Idle" type="2D" scaling="ISCVSteps">
<table name="Engine Temp" type="Y Axis" elements="8" scaling="Temp"/>
</table>

Current 94170715 xml:
<table name="Desired ISCV intial step position with AC off-Neutral" category="Idle" address="4276" type="2D" scaling="ISCVSteps">
<table name="Engine Temp" address="67a2" type="Y Axis" elements="8" scaling="Temp"/>
</table>

 

I also found that the Idle tables in the 0015 rom reference the older "68b8" memory location, limiting there temp to 41 celsius. In the new 0715 rom the tables are switched to the new location as well.

Just an observation.

 

The address for the tunable information on the tables above is the same. The scaling address was changed in v7 to make a little more sense. The 41 degree as the highest value was way too low. Use the engine temp address of 67a2.

 

Appauld, you get my email?

 

Scott ?

 

Yes sir

 

Yes, I know this is an oldish thread, but I'm trying to reach those who migrated from 96530706 back to 94170015.

I've gone back and forth between 96530706 and 94170015 several time now. I went with 9653 when Tephra v7 was first released. Then I tried 9417 when it was released.

In all honesty 9417 seems to idle better, start better (cold and warm), and run 'smoother'. However, the simple normal drive-ability seems 'mushy' to me.

On the other hand, 9653 feels much 'sharper' and 'crisper'. Kind of hard to put into automotive terms, I know.

Has anyone else experienced this?

When going from 9653 to 9417 I simply moved only the tables where I had made changes. Is there something else I should perhaps change? Any ideas?

Thanks,
Jim

 

Jim,

The "mushy" feel you have is that the car isn't as peaky and twitchy as before. The smoother the car runs, the better.

Try a comparison pull using the 2 different roms. I would assume that they will be about identical.

As for your changes??? I would have to see all of the tables you changed in order to give input.

In your signature you have 20psi on e85....you know you can easily boost in the 25-26 range and have zero issues ? ? ?

 

We all have issues...according to my wife I have numerious...

I had turned down the boost when I began the process of retuning after turning off lean spool.

Right now I'm working through several boost leak issues. Replaced leaking throttle shaft seals, now found out the APS BOV leaks, all four injector seals leak, as well as the IAC motor seal. Once all these issues are fixed I'll be turning up the boost.

My reason for the original question was that after comparing both ROMs I noticed the MAF defaults in the two ROMs were considerably different. Not sure what that means.

 

Ha....I understand the "issues". My wife says the same thing. LOL

The MAF defaults will be different because EDM and JDM evos use a different scaling for the injectors, therefore the MAF must be scaled differently as well. I recommend only changing anything if you notice there is an issue. Any MAF adjustments will affect your LTFTs so be aware of that.

My APS bov leaked too. After a good rebuild, clean, lube, and wrapping the adjustment nut with teflon tape...it works better than new. Get in the habit of servicing the BOV at regular intervals.

A quick, easy fix for the IAC is to put a light coat of rtv on it. very light at that. There is just a little, thin, rubber gasket in there. It will get brittle over time.

Sorry, no quick fix for the injector seals. Just replace them. When you install them, lube them with some petroleum jelly. Makes them slide right in and won't clog anything like grease would.

 

I did, a few months ago.

The intercooler sprayer didn't work with 96530706. I switched to 94170015 to see if that fixed it, which it did. Since thing I've continued without issue.

I definitely have no throttle response issues with 94170015.

d

 

Thread jack in progress...

Agreed. What did you find that worked as a lube for the APS BOV? I've tried just about everything I've been able to find and either it blew out the too-lite lubes, or the too-heavy lubes turned into gummy-bear grease. For the past year or so I've simply kept it clean and put a couple drops of Mobile 1 in the vent hole whenever I check the motor oil level. Works great, but, it leaks boost. I think the grease is part of the seal around the piston, since it is simply metal to metal.

 

Mobil 1 synthetic grease. Works like a champ.

 

Like for ball joints?