Enter lower case and make sure you enter '0' vrs 'O' or '1' vrs 'I' or '5' vrs 'S'
The IMA number includes a checksum so the error comes with a false character.

Yes i used the Rheingold injector quantity adaptation from service functions.
What is also weird and stupid, in Rheingold 351 or 404.x there is no actual display of the injector balance, just the FUB which is info. So I can't check what the balance values are at idle, anyone know how to do it with another tool?

One of the codes is A6MBIMZ
I just tried i, 1 and L, neither work in Rheingold or tool 32
Tried caps, tried lower case, no go.
The injector is genuine Bosch like the photo on fixmyvw.com who sells them too.

Rheingold says to put aaaaa5g if values don't save ok.
That value works fine on Rheingold and tool 32.

Annoying, maybe I need to check ista p if there is a dde update.

Any detriment in mileage or power? I wonder if the dde was updated and they adjust on the fly without the need for manual calibration. I'll snoop around Rheingold some more. Maybe I need to reset some auto adjustments?

The documentation on Rheingold is ok, but lacks depth if issues crop up.

The gas engines may throw codes for too lean or too rich mixture. Diesel ones may get away with no fault.

So you just have to deal with an uncoded injector, using the default prescribed code that rheingold/etc states? I wish I knew how the coding worked. Really, if it was a formula with a letter that was a "checksum", you would think it would be universal, like to us- a phone number using 3 numbers for area code, etc.

Fixed it, turns out there are 2 sets of 7digit/letter codes on the injector! Confusing Germans :) the top by the line is the one to use
A cheap usb endoscope came in handy to get the codes by the injector nut.

The smooth running control is tucked inside troubleshooting, not very intuitive if you were used to vag com
I know inpa is more basic like vag com, buy I could never get the ecu script to work... Dde73n57c0 gives me errors... Maybe is windows 10 fault