Question which prom

[roadster]

Hi
I wonder how one can tell which eprom is in the computer if you have the OEM chip or not. I have a 90 and know there has been some updades over years.
My chip is blue & have these numbers ingraved: DELCO AUAH 8555
appreciate any help

Thanks

Pa

 

[redc7z06]

Hi
I wonder how one can tell which eprom is in the computer if you have the OEM chip or not. I have a 90 and know there has been some updades over years.
My chip is blue & have these numbers ingraved: DELCO AUAH 8555
appreciate any help

Thanks

Pa

That is an updated GM PROM:

<TABLE cellPadding=2 width="80%" border=1><TBODY><TR vAlign=center align=middle><TD>8441 </TD><TD>8555 AUAH </TD><TD>16148554 </TD><TD>- </TD><TD>Running change. </TD></TR></TBODY></TABLE>

More info on PROMs can be found at: http://zr1.net/ZR1_parts.html#F

ZR1Mom

 

[roadster]

That is an updated GM PROM:

<TABLE cellPadding=2 width="80%" border=1><TBODY><TR vAlign=center align=middle><TD>8441 </TD><TD>8555 AUAH </TD><TD>16148554 </TD><TD>- </TD><TD>Running change. </TD></TR></TBODY></TABLE>

More info on PROMs can be found at: http://zr1.net/ZR1_parts.html#F

ZR1Mom

Thanks
really appreciate this info

Pa