There is no way SAI maps can be used for this w/o ASM changes, IMO

I can't think of any way triggering SAI is at all comparable to triggering W/M

Could be wrong, though.

I did it years ago
It's an asm thing, you cannot done this by the map changing

Perfectly usable solution, however given that I'm doing this on my test mule, I'd rather go for a cleaner route.  The car is going to end up with enough arduinos for driver comfort stuff.  When it comes to the engine I'd prefer to use automotive hardware.

There is b_sls bit which have been set when sai pump triggered by some conditions
B_sls sends condition to ecu pin (basically another bit in internal ram)
This connection should be removed to prevent any influence from b_sls and because there is a tons of checks of b_sls and you don't want ecu thinks sai running when there is actually wm runs so you cannot just manage b_sls here

And then you basically write some routine with asm like if rl or pvdkds > x and nmot > y and *another conditions met or filters* then set this bit else clear etc

But the thing is if you know asm, you can do that without any tips and if not, this cannot helps you at all

I

If you really have experience in proper RE of x86 targets, then this will be a cakewalk.