richardjh

[edit] - Update on September 26 2021 - Added 56940014
[edit] - Update on April 16th 2019 - Moving to full release.


Hi folks.

I've re-engineered my Ralliart and Evo X (RAX) ROM patches. RAX v3 now supersedes older patches. Some changes are "behind the scenes" stuff only, plus there is an entire new patch for us to play with.

Changes from RAX v1 and v2...

• I've moved patch code/data locations around a bit, to ensure RAXv3 is usable with tephraXMOD V3.
• I've recoded most patches to make them a bit easier for me to auto-generate using a bulk XML file output program. This adds a significant degree of consistency to patch generation, as you can imagine. I'm thinking of calling it SkyNet. Let's just hope it doesn't become self-aware!
• The "SST Upshift Boost Management" patch has been tweaked so as to allow us to configure a hard cap EC limit mid-upshift. For example, if your EC is +8% when you upshift, this patch can apply a hard EC cap of, say, 4% through the WOT upshift, to moderate the possible boost spike. Previously, this patch was hardcoded to enforce 0% EC during WOT upshift.

Because of the relocation work, it is NOT possible to simply flick from older RAX to RAXv3 via those easy-to-use EcuFlash "disabled/enabled" switches...

1. All old RAX Patch items need to be removed from the ROM.
2. All old RAX Patch xml files need to be removed from the EcuFlash data file folders.
3. Only THEN should you copy in the new RAX3 xml file, restart EcuFlash, and patch your ROM.

And now, it's red text time! My favourite part!...


LIABILITY NOTICE

Incorrectly patched instructions can be extremely dangerous to your engine management, and can lead to severe engine damage. You assume ALL responsibility for the integrity of your ECU and engine management, vehicle safety, etc. If you are not confident in the procedures/data involved in the RAX Patch, do not make any change to your vehicle ECU's ROM image.

SAFETY NOTICE

It is important to testing any engine management change in a safe and thorough manner. Tests recommended in the related document are a guideline only. You assume ALL responsibility for the testing approach taken when using ECU ROM patches.




Now, here's some info on the brand new patch I've written in RAX3...


RAX3: Smarter WGDC Error Correction

RAX3 “Smarter EC” makes one simple revision to ECU boost Error Correction:

Upward Error Correction no longer occurs when Boost Levels are RISING


This makes it easier to tune upward EC adjustment to provide rapid, effective correction of below-target boost, without overshooting the target during the recovery phase.

The following diagram shows how EC remains unchanged throughout the spool-up phase, and once boost begins to recover after the post-peak drop.... because upward EC no longer occurs when boost levels are rising:







Sensible Testing Approach

Some ROM IDs have been tested and verified. Some haven't. See the list below to see where we stand.

It is REALLY important you keep your wits about you when trialling an "Untested" ECU patch. An "Untested" patch is not something you slap into your ROM, think "she'll be right, mate", and drive off to work with.

There is a detailed PDF on RAX3 - see attachment. Pay particular attention to the section on TESTING. Most patches have diagnostic logging items built into them, enabling you to watch the patch logic at work using EvoScan.

Don't cut corners. Don't take unnecessary leaps of faith when you can systematically verify correct operation through testing and diagnostics.

If you test out a previously "Untested" patch, please let me know, so I can update the list below.



Testing Status

I'll be noting here the ROM versions (and patches) that have been tested, and by whom. You'll be able to see at a glance what's been trialled successfully.


Evolution X SST - RAX3 ROM ID

52370024.xml - Untested
52690021.xml - Untested
53050006.xml - Untested
53050009.xml - Untested
53050012.xml - TESTED OK - ALL PATCHES - TESTED OK with tephraXModv3 - polik71
54070007.xml - Untested
55580005.xml - Untested
56900007.xml - Untested
56900009.xml - Untested
56880009.xml - Untested
56900009.xml - Untested
56920006.xml - Untested
56920008.xml - TESTED OK - ALL PATCHES with tephraXModv3 - pf
57140001.xml - TESTED OK - ALL PATCHES - psfp
57140003.xml - TESTED OK - ALL PATCHES - psfp
58020005.xml - Untested
59590004.xml - TESTED OK - ALL PATCHES - -Dome-

Evolution X 5MT - RAX3 ROM ID

50845084.xml - Untested
52360018.xml - TESTED OK - ALL PATCHES - RS200Z
52680002.xml - TESTED OK - ALL PATCHES - S.D.
52680015.xml - TESTED OK - ALL PATCHES with tephraXModv3 - itzwolf
52680024.xml - Untested
53040010.xml - TESTED OK - ALL PATCHES - A&C S
54060007.xml - Untested
55570005.xml - Untested
56180001.xml - Untested
56870008.xml - Untested
56890007.xml - Untested
56890009.xml - Untested
56890013.xml - TESTED OK - ALL PATCHES - nonschlont. TESTED OK with tephraXModv3 - itzwolf
56910007.xml - Untested
56910009.xml - TESTED OK - ALL PATCHES - with tephraXModv3 - crimson red
58010005.xml - Untested
59580004.xml - TESTED OK with tephraXModv3 - razorlab

Ralliart SST - RAX3 ROM ID

53590012.xml - Untested
53600010.xml - Untested
53610010.xml - Untested
53610013.xml - TESTED OK - ALL PATCHES - with tephraModv3 - richardjh
55590006.xml - Untested
56940007.xml - Untested
56940014.xml - Untested
56950006.xml - Untested
58030005.xml - Untested
58640002.xml - (problem found - fixed on May 6th 2017) - TESTED OK - ALL PATCHES - psfp
59570004.xml - Untested


For questions, post 'em here, or email me... raxpatch {at} gmail {dot} com


Rich

chetrickerman

iTrader: (7)

You know im interested, lol

richardjh

Email me your personal vehicle's ROM ID. I'll send you the RAX3 XML.

Rich

richardjh

As a reminder, please get in touch if you're interested in joining the RAX Patch Version 3 testing phase.

See first post.

Rich

nonschlont

iTrader: (3)

email sent..

richardjh

56890013.xml - TESTED OK - ALL PATCHES - nonschlont

Cheers!

Rich

richardjh

57140003.xml - TESTED OK - ALL PATCHES - psfp

Cheers!

Rich

Solarwater

I really like the idea of the improved boost error correction!

I am on 5557****, but my car is away for the winter.

I am hoping the patch is validated by spring. But if not, I will be willing to test it out.

richardjh

Confirmation from itzwolf that RAX Patch v3 is working correctly in conjunction with tephraXModv3. Thanks a million!

Rich

richardjh

53050012 tested out okay with tephraXModV3, thanks to polik71.

Rich

richardjh

57140001 and 52360018 tested out okay.

Rich

itzwolf

iTrader: (9)

Rich,

I tuned a 2008 GSR and verified RAXV3 Fast Logging, Baro Boost, and IAT Correction all work properly with Tephra V3 52680322 (52680015.xml).

richardjh

Excellent, thanks.

Also, I've been testing RAX v3 + tephraXMod v3 together on my Ralliart.


I've updated the big list. It's certainly looking promising. A couple more verified tests in the bag, and I'll hit the "launch" button on RAX v3!

Rich

richardjh

52680002 added. This is Evo X 2015 FE.

Rich

tephra

iTrader: (6)

^ really? 5268?