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Old Aug 12, 2009, 05:04 AM   #31
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I am using the 96940011 (05 evo rom) and yes I am still interested! You are gonna have to break stuff down for me Barney style though cause I don't know jack about dissassembly...
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Old Aug 12, 2009, 12:22 PM   #32
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Quote:
Originally Posted by JohnBradley View Post
The easiest way to reset trims is to not use them. Trims are so 1999 :P
I agree. OL ftw.
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Old Aug 12, 2009, 02:42 PM   #33
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Untested with no warranty, try it on your own risk, you have been warned

Here is prepatched stock 96940011, it is WinRAR archive due to limitation of 100kB upload.
So copy all your tunes to this one. If you use some other things like KnockCEL e.t.c
you will loose them, but this ROM is full of code so I doubt it.

To reset fuel trims one has to send CA custom request from EvoScan, MUTMonitor.
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Old Aug 12, 2009, 09:24 PM   #34
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I will try it this weekend... i work late night and I am busy for most of the morning...
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Old Aug 14, 2009, 10:54 AM   #35
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okay just tried this out (without resetting fuel trims via battery) opened evoscan and began logging, sent custom request CA thru evoscan and got a response, deleted CA from the box, and let the car idle for 15 minutes... no change in fuel trims...
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Old Aug 15, 2009, 12:42 PM   #36
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Can you PM the log? or at least what was the CA reply?
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Last edited by acamus; Aug 16, 2009 at 03:24 AM.
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Old Aug 16, 2009, 04:35 PM   #37
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I will load up the rom again tomorrow, and do a log, and let you know what the hex reply was...
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Old Aug 19, 2009, 02:15 PM   #38
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Quote:
Originally Posted by acamus View Post
Can you PM the log? or at least what was the CA reply?
Here is a screen shot so you can see the reply... The log is too big and I can't break it up to zip it either... basically I let it idle for 10 minutes then entered the CA request, then let it idle for another 15 minutes and no change in the fuel trims...

Attached Images
File Type: png Evoscan.PNG (342.1 KB, 0 views)
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Old Aug 19, 2009, 03:59 PM   #39
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Hi, Acamus!! nothing for 88590013 roms Evo 9?? I really like to test fuel reset on Evo 9.
Nice thread!!
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Old Aug 19, 2009, 10:16 PM   #40
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You could just reflash, and let idle for 16 minutes... I have an 04 and have done the MAF scaling and that adjust the idle etc. Let it idlef or 16 minutes, the injectors will go through their cycle, and the fuel trims will adjust...to the new map settings that is.
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Old Aug 19, 2009, 10:25 PM   #41
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Quote:
Originally Posted by Fast_Freddie View Post
Here is a screen shot so you can see the reply... The log is too big and I can't break it up to zip it either... basically I let it idle for 10 minutes then entered the CA request, then let it idle for another 15 minutes and no change in the fuel trims...
Ok I will give it another shot, the command was not executed at all when looking at the reply.
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Old Aug 19, 2009, 11:01 PM   #42
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Quote:
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Ok I will give it another shot, the command was not executed at all when looking at the reply.
Also after looking in the logs under request after I entered CA the request cells read 255... i don't know if that helps...
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Old Aug 19, 2009, 11:02 PM   #43
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Quote:
Originally Posted by ymr View Post
Hi, Acamus!! nothing for 88590013 roms Evo 9?? I really like to test fuel reset on Evo 9.
Nice thread!!
Everytime you flash a IX it auto resets the fuel trims...
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Old Aug 19, 2009, 11:04 PM   #44
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Quote:
Originally Posted by Raceghost View Post
You could just reflash, and let idle for 16 minutes... I have an 04 and have done the MAF scaling and that adjust the idle etc. Let it idlef or 16 minutes, the injectors will go through their cycle, and the fuel trims will adjust...to the new map settings that is.
The VIIIs don't reset the fuel trims upon flash, you have to disconnect the negative battery terminal... as in going back to "0" and letting the trims readjust
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Old Aug 19, 2009, 11:53 PM   #45
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Quote:
Originally Posted by Fast_Freddie View Post
The VIIIs don't reset the fuel trims upon flash, you have to disconnect the negative battery terminal... as in going back to "0" and letting the trims readjust
Thats why hes letting it sit there for the 16 mins....at idle after that time thats roughly 4 cycles and the trims should have already started to adjust.
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