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Originally Posted by spiff72
I will jump in here...
Mine doesn't rev in this case 
On the other hand, my previous vehicle (2002 Chevy Trailblazer) acted strangely when you stepped on the gas while in neutral or park. It would only rev up to about 3000 rpm. I don't know - maybe this had drive by wire too? |
It's a self preservation mode... you never want to rev your engine unloaded. On some cars the red line is even reduced until the engine warms up.