mark chandler
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| posted on 30/12/14 at 08:49 PM |
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EPROM cloning
Hello chaps
My DB7 has a Zytec ECU, this is now 19 years old although is programable, I have a friend with a chipped ECU so was wondering what is involved in
cloning his EPROM and dropping into my car, I assume you pull out the chip, download the information then push back into my car, using a lead on the
comms port is not possible as you need a dongle to access it.
Looking on eBay you can get kits cheaply for this, not sure if they would work back to something this old, does anyone have any knowledge?
Cheers Mark
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ashg
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| posted on 30/12/14 at 09:06 PM |
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It depends if the chip has been encripted, if it is then it would be much harder to copy. If not then Happy days. Dump out the data to a bin and
write it to a new chip job done.
On my old lancia the standard ecu chip was enceipted but the after market ones were not. Once one person in the owners club had an upgrade chip from
a well known Italian tuner for a specific turbo upgrade, it was simply a case of copy and distribute.
Anything With Tits or Wheels Will cost you MONEY!!
Haynes Roadster (Finished)
Exocet (Finished & Sold)
New Project (Started)
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MikeRJ
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| posted on 30/12/14 at 09:07 PM |
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You would need an EPROM programmer suitable for the device you wish to read/program and either new blank device or an EPROM eraser (essentially an
ultraviolet lamp of the correct wavelength).
If it's 19 years old then I suspect it will be a 27xxx device, e.g. 27256, which most programmers will support.
The TL866 programmer, widely available from numerous eBay sellers, is a pretty decent low cost programmer that supports a wide range of devices.
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mark chandler
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| posted on 30/12/14 at 10:05 PM |
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Thanks chaps, I will pull it from the car and have a look inside.
New EPROMs are cheap on eBay so a bit of experimentation is called for.
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BaileyPerformance
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| posted on 30/12/14 at 10:16 PM |
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Make sure you observe anti static precautions when removing the EPROM from the ECU and handling.
As already said its probably a 27C128 or 256.
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