Facing a tricky problem - the RPM of my CIVIC 2002 doesn't drop rightaway. It stops for a second at 1500, then at 1000 and finally gets down to 600-650 revs.
Is it normal? The throttle body(bottle) has been serviced and the car is tuned, tappets adjusted. This is my first EFI vehicle, the rest have been carburator, and I never faced this problem. So I don't even know if it is a problem or not.