Toyota A25A-FXS hybrid DI/PI question

Joined
Mar 14, 2003
Messages
860
Location
USA
My new Toyota hybrid has the A25A-FXS engine. It has both Direct Injection and Port Injection. With this dual setup, do l need to be concerned with carbon buildup?

I have been watching YouTube videos and reading articles on the engine in an attempt to understand it better. I am impressed with the engineering/technology of it and hope that the complexity of it does not make it less reliable over the long term.
 
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