If the question is for me: I'm not so sure but I don't think there is fuel cut based on air flow in ML4.1, only the rev limiter fuel cut. So the cut must be in EZK and it can only cut ignition. The EZK is the worst code I've even seen in OEM ECU, it's totally different from usual Motronic firmwares and I gave up on trying to understand it.
The Alfa V6 is a even-firing engine with one ignition signal and batch fire injection, you could not find anything simpler to control. Remove the EZK and install a piggy-back ECU to retard ignition and control the boost. Or you could leave EZK in place to keep the knocking detection, not for boost which should be controlled by a piggy-back, modify the AFM signal that goes to it, however with more boost you get more powerful combustion so EZK may wrongly think there is a knock and limit ignition.
Someone here gave me a "cheat code". In his chip, at a precis adress, I find a"255.255.255...." an so.
I check all my chips, and find that those with something else do a fuel cut as I describe it in my first message.
Hard cut, like if you break your engine, for about 1 orc2 seconds, and no more boost up 0.5 until you reset the key.
I'm not talking about rev cut, smoother and not restrictive
As noone is able to read ezk"crap" code, i decided not to watch further.
But in ecm 2001, i was able to find 4 or 5 curves dedicaced to turbo/air temp, turbo pressure but nothing to cut something.
I realyse ezcrapk is not able to cut anything, only give a frenquency for the pierburg that control turbo. It's not capable of ignition cutting, only shape spark advance with temp and pressure calculated, because it is not wired to hardware.... not at all.
It indicate, it does not command anything.
So, i assume that you're right, motronic does not know ezcrap, it has same infos than it and cut if too high...
I'm maybe wrong, but with one chip plug in the motro, I have noy cut at all, one with 255
To go further, i read 4 types of chips...
Some sold as "espezial per grosss turboooo!!" Buy it cheap! Only 500 bucks from a guru of alfa freaks, buy it quick!
It's a ......stock eprom with leaner line at 700 rpm, just to tell it's special
A piec of crap for dummies
A chip with tons of gasoline everywhere, but no spark advance mod...... prout pout prout tuhtuh, black smoke
A chip that everybody claims it's a mess that blows engine even beford you plug it in.
Work done everywhere, very smooth at iddle, strong but not too much, safe
Not cheap, but no offens to squadra tuning, it works good too...
Chiptuning is a world of Gurus, especialy if you have a no-obdII car like me. Noone knows, everybody sells....
I am waiting for a wideband,
And I'll do it myself
Thank everyone for feeding the thread