I have one of the first WRX from Germany. In the meantime whe have had two software updates for the Serial-ECU updated with the Select Monitor. After the first Update I installed the PPP. Can i now update to the second one ore ist this not possible. And has it sense to do this. Does anyone know this?

Daniel

 

As far as I can see, I think it's no problem to do a software update. Software updates are mostly used to cure some drivability problems. (or reduce sensitivity for fault codes) No big differences in mapping. As the PPP for the MY01 is an additional board in the ECU, the software update won't change anything to that.

Mark.