I know its a bit of an older thread but i whipped up a quick app that will convert your decimal odometer reading to the hex value you require based on ZerOne's Calculations.

Hi guys, I recently purchased a spare 12200411 ECU/ECM for bench testing from America. The seller claimed it was from a 01-03 LS1 CORVETTE however it is actually from a 2001 Chevrolet Silverado/Sierra 1500. The ECU seems to be identical to my mates LS1 ECU so i assume GM used the same part/model ECU...

2003 HSV GTS Sedan Automatic (300kw) Tune attached.
Thanks to forum member kojab for converting the tune.

Thanks for the heads up about the aftermarket CAS. I went through all my old pc parts and found an old Dell laptop that has a port underneath for a Docking Station which has the DB25 port for my Willem EPROM Programmer. So im just waiting for the docking station to arrive then ill be able to do a be...

Apologies for digging up such an old thread lol, Tried this tool on my lappy running Windows 10 and it read fine but crashed when saving the file. Changed compatibility mode to Windows 7, Ran as Administrator and worked fine, got a valid .bin from the wife's 2005 VZ V6 Wagon using an EnvyousCustoms ...

After further inspection of the 300kw Manual File it turns out that i can't just switch the Transmission Calibration and Diagnostic blocks to make it work for the 4L60E Automatic. There are alot of invalid/blank Engine Calibration Tables etc that will cause issues once converted to Automatic, Desire...

Okay thankyou, i have registered there but for some reason the site was in VBBulletin format, had to change to full site down the bottom to see the attached files. Downloaded now and am gonna apply the 300kw tune engine cal/diag etc to his original backup and re-flash so it has the newer OS :) Thank...

Quick update regarding the OS 12225074 Not giving a valid Operating System Checksum in EFILive, I just found an XDF i had downloaded a while ago called 'LS1 OSID 12225074 v01.xdf' which contains the flag 'Disable Flash Checksum Validation' located @ Offset 0xE3B1 I loaded up the Original BIN that i ...

No i have not contacted him directly, only as i figured he's probably a rather busy guy and i didn't really want to bother him. Apparently the unlocked files are attached to the post on gearhead-efi but i am unable to view any file attachments on that forum for some reason. In the same thread it men...

Installed the Reflashed PCM in the car but it had no spark so after further inspection the dam Crank Angle Sensor wiring had all melted together which is why it stopped running for my mate a few weeks ago. So now i'm just re-wiring the loom for him and replacing the CAS and then can report if all we...