Chuck,
That's what I always thought was the RevL TIU was made for PS3 engines though nobody would admit it. Infact I was chastized for even thinking like this when the RevL was introduced.
Actually, that's correct - they were made to complement each other. I made this point in the 2nd editionof my book.
Further, TIU and engine electronics have a history of evolving together. The Rev. I TIU was the first TIU with a 3 volt processor, just like the 3 volt processor in the PS2 3 volt engines.
