02-27-2015, 06:18 PM
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#1 (permalink)
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A True Z Fanatic
Join Date: Jan 2010
Location: Windermere, FL
Posts: 1,618
Drives: '13 XKR-S, '10 370Z
Rep Power: 19
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Quote:
Originally Posted by mag_black
Flashing ROM will replace existing w/ new.
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I know that. That wasn't my question.
Quote:
Originally Posted by ChipsWithDips
Each dealer ECU update has a different ECU part # in the firmware to differentiate them.
To put your tune back on you after ECU update, will need to get an updated OsirisROM from uprev corresponding to the new ECU part#, and have the tune data copied from the old file to the new one in ROM Editor.
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Thanks. UpRev gave me the same answer. Once the OEM updates are complete, I'll need send them a ROM dump with the updates so they can apply my tune to a new file that won't overwrite them.
Quote:
Originally Posted by ANMVQ
guys are right, the dealer reflash will basically erase your tune and the ECU ID will change and you will not to be able to reflash it till you get a "new" tune, ID at least. But you knew that already  |
Correct, I knew that. It also wasn't my question. 
Quote:
Originally Posted by Awgd8
Just tell the dealer that you are happy with your ECU parameters and you do not need any update or reflash.
Regardless of old or new ECU flash from Infiniti, you would not really going to use it since you use an Uprev Tune.
Just to be safe, load Uprev back to stock when you service your car and you think they might hook up Consult II/III reader.
If you dont do this and you have the Uprev in the ECU. The reflash from Infiniti will erase your Uprev license and will not be able to flash it back to your Uprev Cable.
To answer your initial question, the ECU part number is critical, but whatever version of software Infiniti flash to the ECU can be overrode by the UPREV tuning software.
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I want the update. It improves throttle response and improves transmission shift time. Some have compared the update to having an anchor removed that occasionally holds the car back.
Quote:
Originally Posted by PW370z
I had a reflash done on my G37 like 2 years ago. It was supposed to make the throttle response and shifts smoother. It did what it was supposed to, but the car seemed to have lost some aggressiveness. I personally liked the more aggressive throttle response and harder shifts. I shouldn't have done the dealer reflash. When Infiniti says "Improve" they usually mean make everything softer, as the majority of their customer base wants this. Maybe you should go to the Infinit M forums, and see what other members say about the reflash. It may not even be worth it, and then you don't have to sweat the whole UpRev tune thing.
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Fortunately, that's not the case with the M56. It fixes things and sharpens them up. Some of the owners on the NICO forums have confirmed this. Plus I always have the option of going back. But I doubt I will.
Quote:
Originally Posted by L33T Z34
Yes.
Why bother have'n the stealership reflash, If u kno ur gonna reflash back to the "performance" tune?
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Because I want the updated software that improves the throttle response, fixes transmission behavior, response, and shift time...in addition to my tune? It's pretty simple.
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