WTB: ZR-1 EPROM

[Sgreg]

I am looking for a 91 ZR-1 eprom part # 16193416 AKA 3417 BFXB. If you have one for sale, please PM me. Also interested in finding a blank Eprom 27C256. Thanks.

[XfireZ51]

Sgreg,

Do you need the stock prom or a copy of it? BTW, I have a 27c512.

[Sgreg]

I would prefer the stock prom. Is the "512" the same as the 256 only faster transfer ? Thanks, please PM me with prices.

[XfireZ51]

The 512 is just a prom with 512kb rather than 256kb. Same chip, more space. What are you using it for?

[Sgreg]

To download a performance prom. I really need the stock eprom more than the blank.

[Tyler Townsley]

To download a performance prom. I really need the stock eprom more than the blank.

Do you have the capability to burn the calibration? I think Todd P has a stock 91 calibration. Unless you use a Moates adapter to use an eeprom you need the whole prom carrier with a prom that has your needed calibration burned into it. Another way is to cantact Marc H and have a custom calibration done by him, I believe if you send him yours he will program it to your car.

Tyler

[XfireZ51]

Sgreg,

You have two ways to go. Either get a stock prom, erase it and upload your new cal OR, get a Moates adapter and install an auxiliary chip onto the stock prom

[Tyler Townsley]

Sgreg,

You have two ways to go. Either get a stock prom, erase it and upload your new cal OR, get a Moates adapter and install an auxiliary chip onto the stock prom

The advantage to using the adapter and an eeprom is that it can be erased and programed using lower voltages. The stock prom has to be erased using a UV device and programed using a higher current burner. It is usually cheaper and easier to have someone who already has the equipment do it for you.

Tyler

[XfireZ51]

The advantage to using the adapter and an eeprom is that it can be erased and programed using lower voltages. The stock prom has to be erased using a UV device and programed using a higher current burner. It is usually cheaper and easier to have someone who already has the equipment do it for you.

Tyler

:confused:

I erase both proms using UV. And I upload the cal on either one with the same burner settings.

[Tyler Townsley]

:confused:

I erase both proms using UV. And I upload the cal on either one with the same burner settings.

You can erase and program the eeproms (AT29 series eeproms) using this usb programer.

http://www.moates.net/product_info.php?cPath=31&products_id=197

It will not erase or burn the 27 series eproms, but you can read the calibration. For that I use an old Needham unit. Needham is gone out of business.

Tyler

[XfireZ51]

Tyler,

I have a Datamaster UV eraser. Same one Marc H. uses. For burning I have the Needham EMP-10. Sorry to hear they went OOB.
For the most part however I run my motor on the Moates Ostrich. I make changes often enough that I just leave it plugged in.

[Demps]

Not much detail but:

http://cgi.ebay.com/ebaymotors/corvette-ZR1-Computer-chip_W0QQcmdZViewItemQQ_trkparmsZ66Q3a4Q7c65Q3a3Q7 c39Q3a1Q7c240Q3a1318QQ_trksidZp3286Q2ec0Q2em14QQha shZitem140303402021QQitemZ140303402021QQptZOtherQ5 fVehicleQ5fParts

[Sgreg]

Thanks to all for the advice, options and help. I need to make some decisions. :handshak:

[tpepmeie]

:confused:

I erase both proms using UV. And I upload the cal on either one with the same burner settings.

I'm late to this thread, but do I understand you right? you erase 29C series EEPROMs with UV? That aint gonna work. They are electronically eraseable chips. I'm sure I must have misinterpreted what you said.

Todd

EDIT: I've read through it again, and I think you must be using the 27C512 in your Moates adapter. You can use the 29C series and trash the UV eraser for good.

[XfireZ51]

I'm late to this thread, but do I understand you right? you erase 29C series EEPROMs with UV? That aint gonna work. They are electronically eraseable chips. I'm sure I must have misinterpreted what you said.

Todd

Unfortunately I may not have made myself clear. My statement was related to using UV on both the stock chip and the chip for the adapter. As I re-read Tyler's post I see that he used a EEprom for the adapter. I haven't done that since I use the Moates Ostrich.
With EEproms I re-flash with the burner.