What model ECM is this ?

[Team ZR1]

Mark, I have tried compares with ZR-1 E-proms of 91,92,94 and 95.

I think that since the ECM changed for '91 that I could be limited in what to
compare to

I think the older ECM for the Corvette were 8 bit and it was in 94 that a 16
bit was used for OBDII needs
Correct ?
Which processor did they use ?

John

Mark Romans wrote:

> John:  What year prom are you  comparing yours too?  If the ecm is a 90,
> compare it to that.  I have seen differences like this when the code is
> offset just a few bytes, when in reality those few bytes are the only
> difference.
> Mark