So I am part way through unravelling the various ME7 labels for fuelling - trying to help someone with a supercharger project using C5 RS6 injectors (BCY motor) into another Audi V8 application with the BBK motor - B6 S4). Both ECUs are ME7.1.1 so hoping for good amount of consistency between them.

With help from some map packs found here and other online crumbs of info elsewhere I have the main injector constant (KRKTE) and latency (TVUB) info extracted from the RS6 binary and I know how to translate that to the slightly differently sized BBK engine.

I also found the KVB byte needing to provide more accurate fuel consumption info on the cluster. There is some detail about that which was weird but thats subject of another thread.

What I cannot find is any reference to the TEMIN or TEMINVA values in the RS6 map pack.

I just want to check that the TEMIN values (essentially the smallest width injector pulse permitted) on the BBK setup is not going to force the bigger RS6 injectors to run richer than desired at the very small load levels for idle. I suspect its not as the difference from BBK injectors (230ccpm) vs BCY injectors (390ccpm) is not so huge - those are nominal figures for petrol at 4bar. I just want to check and confirm that TEMIN/TEMINVA is good.

Firstly can someone explain the difference between TEMIN and TEMINVA ?

Does anyone have a more complete map pack of any sort for any C5 RS6 ECU variant that I can look into ?

Search the FR for rkuk and B_va

basically, iirc, when the wall wetting model is showing a very large negative(?) correction, switch to the other TEMIN.

I could be wrong on this, its off the top of my head.

Roughly, decel leaning (pull fuel) condition (indicated)

Basically, on decel, wall wetting may require a correction which the normal TEMIN may prevent.

Great question! No idea Stock values are often mysterious, and the OEM calibrators often take shortcuts and even make mistakes.

Yeah I am going to get some logs for what injector time looks like in decel/liftoff condition.

As I type that, I cannot remember if VCDS (or the ME7logger) includes the latency (TVUB) aspect of pulse width or if its just the raw "TE" (effective time) the injector needs to be actually in flow.