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How Far Until ECU Reflash?

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Old Feb 24, 2004 | 04:57 AM
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Default How Far Until ECU Reflash?

So how far can someone go with mods until a reflash is needed? what r u guys experiencing? here's what i got now, or atleast have paid for:

i/h/e, pulley, cats, plenum, grounding kit.

i would hope i'd still b fine. lookin at probly doin a flywheel then; that shouldn't effect anything. i wouldn't think i'd have any probs unless i did cams, right? and if did and had a/f probs, would a safc work instead? i just don't like the idea of flashin my stock ecu.
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Old Feb 24, 2004 | 05:04 AM
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The need to flash is on individual basis. There are people pushing 270-280 without needing a flash and there are people with 260 or less that needed one. You just need to dyno w/AF your car to find out. Also, what's the problem with flashin your stock ECU? What ECU would you want to flash? Or, what piggyback would you want to overpay for to have strapped onto your stock ECU? The only other thing I would use is the XEDE and it is 900 bucks and you are still stuck with a 6600 fuel cutoff even if you have cams and a 156 MPH limit....
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Old Feb 24, 2004 | 05:16 AM
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true but the XEDE wouldnt require going to california for each minute change, but rather just doing it on the fly provided you know what you are doing. Granted you can do the mail thing, but sending bung readouts and playing the tag game over the distance of a few hundred miles isn't quite ideal in my mind. But I would personally like the speed governer nuked out, but I'm fine with the rev limit where it is.
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Old Feb 24, 2004 | 05:16 AM
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The SMT6 looks like another plausible option as well.
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Old Feb 24, 2004 | 05:18 AM
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well, i would hate the downtime, and couldn't the dealership f up the flash. they'll atleast give u beef about it. i know safc's rn't the most popular thing around here, but the flash is a static mod. a safc could continue to b tuned, if u add more stuff later. it would b alot more versatile, imo.
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Old Feb 24, 2004 | 04:33 PM
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From what I have discussed with Cheston, the dealer will not "see" the flash unless they specifically go looking for it. And even then, it would take a seriously trained eye. Furthermore, dealers have been instructed by Nissan to only reflash the ECU if there is a recall or a very specific reason to do so. Reason being that they do not want owners coming in for flashes everytime a new version comes out. That being said, the chance of the dealer f'n up the flash is pretty low.
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Old Feb 24, 2004 | 06:31 PM
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Default They can see it...

Originally posted by peptidbond
From what I have discussed with Cheston, the dealer will not "see" the flash unless they specifically go looking for it. And even then, it would take a seriously trained eye. Furthermore, dealers have been instructed by Nissan to only reflash the ECU if there is a recall or a very specific reason to do so. Reason being that they do not want owners coming in for flashes everytime a new version comes out. That being said, the chance of the dealer f'n up the flash is pretty low.
We can see the new program and any tech will try to find a reason to not work on your car for the sh*tty warranty labor rates. The flashed ECU is an easy way out for factory techs and easy for them to see w/ Consult. Don't fool yourself. I talk with our Nissan/Infiniti product engineers often and they know what the owners are modding.
I believe the ECU reflash to be the BIGGEST warranty killer, it IS the engine management system and will be the first place we check when you have engine problems. Any problems will be potentially on your tab. Steer clear.
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Old Feb 24, 2004 | 09:48 PM
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Originally posted by Juztin
true but the XEDE wouldnt require going to california for each minute change
Cali isn't the only place to have it done. There are others. There are advantages and disadvantages to both ways. Personally, it is very feasible for me to use the flash method. That is the way I have started to go and that is the way the whole thing will be tuned.
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Old Mar 5, 2004 | 06:38 PM
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Default Re: They can see it...

[i]I believe the ECU reflash to be the BIGGEST warranty killer, it IS the engine management system and will be the first place we check when you have engine problems. Any problems will be potentially on your tab. Steer clear. [/B]
Do you think that this will be an issue with the Apexi SAFC II? I know it makes some changes, but does not change the factory internal configurations, right? It only alters them outside of the ECU? I'm taking a shot in the dark here......my SAFC II is in the mail now!
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Old Mar 5, 2004 | 06:44 PM
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they can see the flash, or more precisely, they can see something has been done, if they look. I tried 2 different dealerships today, (because the first wouldn't give me an explanation of why it didn't work), to get my technosquare ecu reflashed back to stock. The 2nd one showed me the error message, which was something along the lines of ecm mismatch, or in other words, the consult II no longer recognized my ecm as a valid unit.

Reason for going back to stock is a stillen supercharger upgrade I am installing on sunday, not due to any problems with the technosquare. I spent over 2000 on upgrades for 15hp, and decided NA isn't worth it.

Technosquare is reflashing for me, so it isn't a problem.
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Old Mar 5, 2004 | 06:54 PM
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Reason for going back to stock is a stillen supercharger upgrade I am installing on sunday, not due to any problems with the technosquare. I spent over 2000 on upgrades for 15hp, and decided NA isn't worth it.
I wish I could say the same. I don't want to go into all the details, but I also had to go back to stock from having my ECU flashed.

One of the problems I encountered was when I went to Nissan for service. The ConsultII had problems with the reflash when the tech tried to run through the relearning sequences.

I think it's a safe bet your Nissan Service department will know you have altered the ECU if you reflash it. The question is how cool they will be about this when working with you on the warranty... though, chances are if you've done a lot of other motor mods they may void your motor warranty for other reasons anyway...
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Old Mar 5, 2004 | 09:10 PM
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You pretty much have the same stuff i have in terms of engine breathability. The TS ecu i have works great and it is the latest version thats supposed to work with cams and he said i don't need to reflash for flywheel or other non A/F issues. Engine runs really good right now, makes me want to invest in some cams.
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