RE: wren 54 help please !!
What do you mean by PT? If by PT you mean power turbine then that shouldn't be left on the engine in a turbojet installation. The power turbine is the turbine wheel of the gearbox that sits behind the 'gas generator' (i.e. the engine) in turboshaft/turboprop applications.
I'm guessing you are just talking about the turbine wheel, in which case I can't see them being that different (although I may be wrong)?
As joeflyer says. What are the actual ECU readings at full power?