See this thread

http://www.gearhead-efi.com/Fuel-Injection/showthread.php?6086-TunerPro-comprehensive-XDF-for-0411-PCM-with-Checksums

Trying to use DIY tuning software is a little dangerous, unless you are an advanced user.

While I applaud the effort put forth by dzidaV8 in working on the XDF for the 12212156 OS, there are...

Can't seem to fix the spacing in the above post ... makes it a bit hard to read.


*** had to switch from the WYSISYG editor, to the standard editor ***

There are 8 segments of code in the PCM, and 8 related Checksums that must be calculated. The 7 calibration segments have straight forward Checksum calculations.

The Operating System (OS) uses a...