Thanks in advance for any help! I have a 2001 A6 tip trans with a 4B0907551T ECU. I have been reading through the NefMoto forum and searched in depth. There is a ton of great information and people on here, but I am having trouble confirming addresses.

Using TunerPro and the M-box definition, I can easily change CDSLS to 0, but it appears CWKONABG, MSLUB and MSLBAS is not in any of the M-box definition files (20130729 and 20120516). My understanding is I can flash an L-box stock bin, but even using an L-box bin I still cannot find CWKONABG, or MSLUB or MSLBAS.

What is the easiest way forward for the SAI delete? Can someone provide assistance for my T-box bin, or how do I work with an L-box bin? Thanks! 

Two of those locations ARE already in the s4wiki page

http://s4wiki.com/wiki/Tuning#Secondary_Air_Injection

I will add CWKONABG time permitting

Whoa whoa whoa... G is NOT the same as L yo!

I assume you are talking about A6 4b0-551T?

Used the 8D0907551G definition to change MSLUB and MSLBAS and it worked! I was worried about using the wrong definition or wrong address, as Wiki page says the section only applies to L-Box for SAI delete.

Many thanks to all!

Yes, the wiki addresses ONLY apply to s4 M and L. Those addresses are NOT for G. G is already fully defined - there is a separate xdf/kp for it and it is HUGE.

Also, I hope you didn't use the G definition on an L box file.

Use G with G or your original T.

G does NOT apply to L.

Uh. Wait a tick. This makes no sense. Of course modifying the bin causes the checksum to fail.

You have to use ME7Sum to correct the checksums.

The entire purpose of checksums is to detect undesired corruption.