NefMoto > Technical > Tuning > Can this be overwritten GIAC S4 M-box tune?
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Author Topic: Can this be overwritten GIAC S4 M-box tune?  (Read 3737 times)
sqitis
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« on: March 08, 2014, 06:55:26 AM »
Hey guys, just checking to see if this tune can be overwritten or removed so I can flash something else to the ECU? Opened it up and took a shot of ECU. TIA!
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Lost
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« Reply #1 on: March 08, 2014, 08:54:10 AM »
I dont know if this answers your question, i had a similar situation.
Got hold of a box that did not have 29800 chip in, but some ABT tuned.
I did a read with mpps cable and it was Ok. Than i flashed in new file. Worked well.
Try to read and save it first.
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ddillenger
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« Reply #2 on: March 08, 2014, 09:24:29 AM »
Look underneath that chip. If it has a little square chip on the bottom it cannot just be overwritten. If someone has already returned that ecu to stock, then it's possible.

Those risers are notorious for failing, best bet is to desolder the entire mess and return it to stock.
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sqitis
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« Reply #3 on: March 08, 2014, 10:30:01 AM »
Quote from: ddillenger on March 08, 2014, 09:24:29 AM
Look underneath that chip. If it has a little square chip on the bottom it cannot just be overwritten. If someone has already returned that ecu to stock, then it's possible.

Those risers are notorious for failing, best bet is to desolder the entire mess and return it to stock.

I believe there is a little chip underneath.  I was able to read it and download it but I was about to flash it and I got a warning with Nef software saying it couldn't read a block and something about erase or ignore or cancel so I just stopped there and thought I might ask here.  It is still flashed with Giac and car spikes about 17-18 but not rear o2's coded out or EGT's and I wanted to load my own file.  Any help would be great.  Thanks guys!
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ddillenger
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« Reply #4 on: March 08, 2014, 10:36:10 AM »
It has to be returned to stock. Cover the eprom and shipping and I will do it for you.
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!

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