E38 ecm, only showing 1 bar speed density option

Finally finished everything on my 75 Dart. And we hooked up and its only giving us the option for 1 bar speed density to be applied. However I have two turbos on my gen iv 4.8 and was wduring if there was a way take my e38 ecm a
Nd reflash it so that it will allow me to use the zr1 mtrap sensor and finish the tune rr started. Any tips or ways around this issue or do I just basically have to break down and another e38 from a a 2010ccamaro?

Thank you

Ri hays

Post your file.

E38 computers as far as I know either offer no upgrade or only a 2 bar upgrade. Never seen a "1 bar" speed density OS on any E38 computer.

You also dont need an enhanced OS to tune for boost on anything Gen IV+. Set the MAP sensor values to your sensor, rescale Spark table axes, and rescale VVE then tune away.