Quote:
Originally Posted by Xist
Therefore Deceleration fuel cconditions cutoff (DFCO) is sued to utoff control catalyst temperature during vehicle coastdown, when the engine intake manifold pressure is drive too low to a, allow llow complete combustion. To prevent unburned fuel from entering the converter, the fuel injectors are shut off by the engine controller.
So, DFCO was implemented for emissions, not mileage?
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Nice find! Thanks for posting this. Care to share your source?