I was wondering.....Becaurse you cant start burning the 256kb PROM at $4000 with the ERPOMER5 unit is it possible to solve this another way? I dont like to copy the .bin everytime in DOS. I have a guy here in sweden ( joby at thirdgen)who has solved this in a simple way. He bent a leg on the EPROM and attached it to either GND or 5v depending on where the ECM should start reading, Can I do this? and still program the EEPROM in my epromer5 unit?

Sorry for my bad english, its hard to write technical stuff.......

Here are som pics of how he didi it....

http://jobyteknik.homeip.net/corvett...f/DSC06761.JPG
http://jobyteknik.homeip.net/corvett...f/DSC06763.JPG

/N.

 

if you using tunercat software contact them for the 32k tdf for $32 $32b $6e.

 

Havent got tunercat yet waiting until they have the "romulator" version. But is seems like a good ide to get 32k tdf.

JoBy: if you reading this- thanks anyway!........

 

I did a simple adapter to be able to use a 4k*8 2732A eprom instead of the stock 1k*8 N82S181 eprom in the 1226026 Cross-Fire ECM.

http://jobyteknik.homeip.net/corvette/ecm/zif/

On the adapter in those pictures I only grounded pin 18 to enable the chip. On the stock eprom pin 18 is VCC to enable read.



By adding the red ( two switches and two resistors ) and disconnecting pins 19 and 21 from the ECM like I did with pin 18, I could select what part of the eprom to use.

sw1 sw2
[on] [on] 1st k
[off] [on] 2nd k
[on] [off] 3rd k
[off] [off] 4th k

Without those switches the data will be read from the 3rd k as the ECM uses VCC on pin 21 and GND on pin 19 to read the stock eprom.

 

Yeah baby...

I forgot to mention in my email to you earlier about the TunerCat update for 16k->32k. Good save!