thank you for the prompt reply !
adopting the namings looks like a workable solution. I'll fiddle around with the TunerStudio ini file and have one of my mates play with the system; but I assume, that will be workable!
I can't use a TPS, as this is gong into 1970s VW Campervans. Those cars have no TPS and no easy way to install any. Our cars are still today used for what they are intended for: go camping. My car is seeing >10.000km of operation per year in sometimes harsh environments. Hence any stuff on the car must be working. On top, the cars are registered as historcial cars giving you a bunch of benefits here in Germany and we have MOT every two years. Historical cars are not allowed to have modifications (or max very minor ones, that need to historically correct) as otherwise they will de-register the histrocial registration in MOT. In turn, the injection system on those busses is now 40 years old with sometimes ECU failing. You could use the ECU from an Opel/Vauxhall Manta/Ascona, but that isn't ideal for those engines. On top of things, after 40 years of operation, the MAF is broken on all busses with no replacement part being available. If you find NOS (new old stock), there have a ridiculous price tag (going into the thousands). In all the years of ownership, I have only seen one NOS MAF coming up on ebay globally with the seller asking 2.500,- for it.
So long story short: the plan is to integrate the Speeduino into the existing ECU housing and keeping a (mostly) original engine loom as replacement for the stock ECU and leave the MAF out of operation. That would fix all issues at once and also give us a man's toy to play around with
This gives an impression: Colle-de-la-Finestre on our way to Strada-Assietta. About 2.000m of altitude in an area, where for sure not repair mechanic will come and help you out. So you fix it with what's inside the campers or you're doomed.