Quote Originally Posted by Six_Shooter
You should have tried the later years on your Auto X-ray. ;) 1227730 was used in the '90 to '93 F-bodies and used $8D. This is also the change over from MAF, that used the the 1227163 ECM, to SD.

The '90 'Vette used $8D but had extra information on the datastream as I understand it to work with the HUD/DIC.

$8D is a 32kb bin, so if you're only saving a 4kb file then you still need to change some settings there while reading to get the proper bin.

Robert has said all the same (and more) than I would have said for the rest of it.
Where were you a few days ago? When I got home I researched it and did find that to be the case.

The problem with only getting 4kb was when downloading the bins in my AutoProm I did not have the offsets set correctly. Once I did that I got the entire file. You'd think I would learn from my mistakes as I did the same thing when I started playing with the 427 as most of my time has been a 1227747 thing.

What's a HUD/DIC ?