Enginuity Tuning Software - Released Alpha Version

[Jeramie]

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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[qoncept]

All CELs can be disabled by modifying the ROM.

[ejsportcom]

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?

[qoncept]

It will be completely transparent to OBD-II sniffers. They'll have no idea.

[ejsportcom]

Originally Posted by qoncept

It will be completely transparent to OBD-II sniffers. They'll have no idea.

thats what i like to hear

[jblaine]

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.

[Jeramie]

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?

[TheMadScientist]

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

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.

[MRF582]

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.

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

[qoncept]

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

[teiva-boy]

w00t!

Gotta get my cable now

[GotWRX03]

should'a done that three months ago

Originally Posted by teiva-boy

w00t!

Gotta get my cable now

[teiva-boy]

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.