Why are RPMs limited to 4000 in D and N?
#1
Racer
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Join Date: Feb 2002
Location: Charlotesville, VA
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Can't rev the engine without moving -- in N and D, revs don't go over 4000. Is that true in all your Cayennes?
#6
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928 is correct. Two reasons - one, as 928 mentioned is to block sudden gear moves, and the other is emissions related - revving a cold motor and letting off the gas rapidly can dump excess fuel into the system.
This "feature" is to migrate into the Carrera and Boxster Tips as well.
J
This "feature" is to migrate into the Carrera and Boxster Tips as well.
J