b1 checksum

[Dec_head]

I am trying to do a vn group a tune AXFY0848 with knock disabled using b1 xdf it is a bit odd i can see the knock error flag but not kescoola is it the Max. Cool. Temp. For Cold AFR Table and how do i bypass checksum any ideas

[Jayme]

may I ask why bother using the group A tune? unless you are using a group A manifold, its not much good to ya

[Dec_head]

may I ask why bother using the group A tune? unless you are using a group A manifold, its not much good to ya

It is for a group a manifold on a vn bottom end with a vn computer and modded harness

[Doctor Bob]

AA will bypass the checksum
kescoola is at $33

[Dec_head]

I added the kescoola to the b1 xdf at 33 and used this equasion 0.750000 * X + -40.000000 from a 5 d xdf and it says 50. degrees default should i be using a different one for that tune.
And it doesn't have the option to set aa to bypass checksum any idea what address that is at.

[antus]

Its the 'B1' program ID at offset 0x08 that needs to be set to AA to bypass the checksum test.

[Dec_head]

Ok cool thanks for the help i think i have it sorted i have uploaded a changed b1 xdf and a bin i modified with it if someone could check i have it right that would be great.