I use my Roadrunner PCM with TunerCat, not EFI Live, but the answer is the still the same.
The Roadrunner PCM no longer has flash memory - the Roadrunner emulator module replaces it internal to the PCM.
The USB cable exiting the 411 PCM is used to program the Roadrunner emulator PCB - no additional programming
hardware is required. When you buy the realtime option for either EFILive or TunerCat, it gives you the ability
to write directly to the Roadrunner PCM through the USB port, both to do a full program, as well as for making
changes in realtime.
At some point, you may want to remove the Roadrunner PCM from this project vehicle and use it in another
project. When that happens, you will then need a means to flash a standard 411 PCM with the file you will
have developed using the Roadrunner. This is where the EFI Live programming cable comes in - it will allow
you to flash program a stock 12200411 PCM.
-Scott
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