EPROM Emulator

tmsnyder

Well-known member
Jan 15, 2014
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Buffalo NY
Has anyone ever used an EPROM Emulator to replace the EPROM in the ECM?

There's a guy on facebook that says he does this and sells these, very inexpensive emulators for GM TBI ECMs.

Just wondering if this is something that is commonly done, or if it seems feasible.

I searched for more info, but only found this article on generic application: https://www.hackster.io/news/kris-s...tPO3A0ISiBXrKfs5wU_aem_gKi9TE5vDbAIH36m3cI6OA

Seems like a little easier and faster alternative to burning your own chips.
 
Yes but seems unavailable, and overpriced.
Do you have a link to the Facebook page for that Emulator?

Hopefully the EBL will be available within the next few months; see here; Xfireperformance blog.

Their current site lists the cost for the ECM that they were purchasing from Dynamic EFI and reselling that included an add-on module they manufactured for crossfire Corvettes.

They've since acquired the assets of Dynamic EFI from BobR's estate, which will allow them to reproduce and sell the generic 'Flash II' ECM that have been used on our GMC Motorhomes (and other GM cars from that era).

BobR completely re-wrote the ECM software for the EBL, making it much easier to modify and tune for GM cars of the throttle body EFI era.
 
Since I had the Eprom writer and the skills, I was burning my own Eproms about 15 years ago. It was very tedious (long erase / write cycle) and the Eproms were hard to get. I then made a socket so that I could use E2PROM chips of higher capacity.

Thankfully EBL came along and everything became much easier to tune. Not going back there.
 
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My Eprom writer could do Proms, Eproms, microcontrollers etc... but it used a parallel printer port connection which by them was not supported, or available on newer computers. So I was using an older computer (win 95 I believe).

Not to mention working in Hex.
 
My Eprom writer could do Proms, Eproms, microcontrollers etc... but it used a parallel printer port connection which by them was not supported, or available on newer computers. So I was using an older computer (win 95 I believe).

Not to mention working in Hex.

The writers are instant now, and USB. No more UV erasing for 2-3 hours.

And there is at least one emulator, which you don't even have to remove the chip to program it.