I guess that we can quote our glossary page:
Quote:
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Deceleration Fuel Cut Off, a condition where fuel injection stops when the accelerator is released and engine speed is above a target determined by the computer. The engine continues turning via the transmission, driven by the vehicle's momentum. Once below the threshold engine speed (1300-1500ish rpm), fuel injection resumes allowing the engine to continue to run.
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http://ecomodder.com/forum/showthrea...e-ii-3505.html
although this does not mention that it maintains power steering and brakes.