Pins 1, 26 and 27 are different between the chips. Those pins are for A13, A14, A15 as the size increases. 2764, 27c256, 27SF512 Inside the ECM they are probably grounded. 2764 should be readable.
Pins 1, 26 and 27 are different between the chips. Those pins are for A13, A14, A15 as the size increases. 2764, 27c256, 27SF512 Inside the ECM they are probably grounded. 2764 should be readable.
It will read the chip however the data is scrambled or something.
I don't see anything that says for a 2764 chip on the burn 2 screen. These are my options: 29C256, 29F040, 27S512, 2732A (READ ONLY), 27C128 (READ ONLY), 27C256 (READ ONLY), 27C512 (READ ONLY), J3 FORD ADAPTER, F2E FORD EEC-IV READER, F2E FORD EEC-V READER, F5 FORD ADAPTER.
Last edited by racingjoe66; 02-08-2017 at 11:15 PM.
I don't have a burn2. I have a different programmer. The Burn2 will probably read the 2764, but it is toggling those pins I mentioned, that aren't address lines. How big is the bin file? What options do you have for chips with the Burn2?
The bins are 32.0 kb of info
Looking around the web, it doesn't appear that the Burn2 supports the 2764 chip. I think the bin file should be around 8K.
The stock ecu fuel map is 32k and I did read somewhere that this aftermarket company did first do there fuel chips with 8k and then later on upgraded to 16k or 32k. How does the 2764 chip differ from the 256 & 512 chips I am using? And do you know if the Batronix BX32P reader will read the 2764 chips? thanks for the help.Originally Posted by 1320_john
Last edited by racingjoe66; 02-08-2017 at 11:37 PM.
Most of the pins align from chip to chip; they use the same address and data pins in the same locations up to A12. On pins 1, 26 and 27; they added additional address pins to access the extra memory. On the smaller chips, those pins have functions like Vpp, P_bar. Download the datasheets for all of them and it will give you an idea. The information you want may be in the bin file. Maybe open it with a hex editor and see if you can cut it into 8K chunks, then look at each chunk to see if the data is correct. I assume you have a fuel map editor? Or do you use TunerPro?
right from there website. USB Chip Programmer works with the AT29C256, 27SF512, and AM29F040 chips.
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