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Old 05-09-2006, 08:27 PM   #51
Jeramie
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Quote:
Originally Posted by jblaine
Can I disable TGV CELs/codes? Especially the ones that cause limp mode?
Thats a good question. That one has crossed my mind before.
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Old 05-09-2006, 09:37 PM   #52
qoncept
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All CELs can be disabled by modifying the ROM.
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Old 05-10-2006, 01:57 AM   #53
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Quote:
Originally Posted by qoncept
All CELs can be disabled by modifying the ROM.
my consern is when they hook it up to the odbII scanner at state inspection in nj if it will show that something isn't right or if it will just pass?
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Old 05-10-2006, 07:56 AM   #54
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It will be completely transparent to OBD-II sniffers. They'll have no idea.
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Old 05-10-2006, 11:13 AM   #55
ejsportcom
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Quote:
Originally Posted by qoncept
It will be completely transparent to OBD-II sniffers. They'll have no idea.
thats what i like to hear
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Old 05-10-2006, 11:55 AM   #56
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Quote:
Originally Posted by qoncept
All CELs can be disabled by modifying the ROM.
I believe you, but I would like to get more clarification.

It has taken EcuTek and others quite some time to defeat the TGVs.

I don't mean "intercept the problem and just don't light up the CEL on the dash". That's relatively easy as I understand it.

I mean "fully subvert" TGV logic so that a car with no TGVs and no TGV sensors plugged in has zero problems.
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Old 05-10-2006, 12:01 PM   #57
Jeramie
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Defating the CELS is generally not that hard. Most of the locations are known. Most CELS are deleted (well not actaully deleted) but the values that trigger them are moved to a point where they no longer trigger the cel hence "deleting" the cel. I hope that made sense?
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Old 05-10-2006, 12:09 PM   #58
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PM crazymike.
He has been comparing the USDM and JDM ECUs. I think he said that the memory space used for the TGV code in the US ECU is used for the AVCS in the JDM ECU. You might be able to flash the JDM ROM into the US ECU. That way the US ECU won't even check for the TGVs.
I am not sure so you would need to talk to him.

TMS

Quote:
Originally Posted by jblaine
I believe you, but I would like to get more clarification.

It has taken EcuTek and others quite some time to defeat the TGVs.

I don't mean "intercept the problem and just don't light up the CEL on the dash". That's relatively easy as I understand it.

I mean "fully subvert" TGV logic so that a car with no TGVs and no TGV sensors plugged in has zero problems.
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Old 06-03-2006, 12:43 AM   #59
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Jeff, you can disable all CEL codes. My car has a stock ECU right now tuned via Colby's ECUflash, Calvin's ECUexplorer, and qoncept's Enginuity.

Quote:
Originally Posted by cboles from www.openecu.org
Say your DTC is P0420.

Load the ROM A4SGD10C in a hex editor. Search for either the hex sequence

03 04 20

or

04 04 20

The 03/04 depends on whether the DTC is an OBD or OEM specific code, I think. You can see that the DTC part of the bytes is just encoded as BCD, and looks like decimal. In this case, I find 03 04 20 in one place in the file, at address 0x2DB0D. To eliminate this DTC mapping, replace the 03 04 20 value with 05 00 00, which appears to be Subaru's way of mapping this event to a non-existent DTC, which produces no CEL.

That's it! Just be sure you don't accidentally edit some other part of the ROM that just happens to have a byte sequence that matches the DTC you are looking for!

Colby
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Old 07-05-2006, 08:45 AM   #60
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Version 0.3.0 is now available for download. This version adds 32-bit ECU support (STi, Legacy, Forrester etc) (!), new checkboxes for disabling CELs, and some other minor changes. Now get it and tune your STi!

http://www.enginuity.org/viewtopic.php?t=397
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Old 07-05-2006, 03:23 PM   #61
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w00t!

Gotta get my cable now
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Old 07-05-2006, 03:29 PM   #62
GotWRX03
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should'a done that three months ago


Quote:
Originally Posted by teiva-boy
w00t!

Gotta get my cable now
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Old 07-05-2006, 04:37 PM   #63
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Quote:
Originally Posted by GotWRX03
should'a done that three months ago

I only got my FXT 3 months ago

Until as of last week it's been relatively stock.
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