I would suggest the following setup values for vw/audi(rest at default). Must get through all items to store.
VSS Pulses/Mile=13406
MicroSec/Gallon=0128800000
InjTrg 0-Dn 1-Up=1
FYI, the signal rmccomiskie and yetimus describe sounds like a wire from the ECU that should incroproate all the fuel variables into a basic duty cycle representation of fuel consumption for an
onboard mpg gauge, that never gets installed in the states.