I have a 2000 Boxster S with 42,000 miles, here's the deal:
--When shifting from 1-2, or 3-4, etc my throttle blips up a few hundred RPM once I disengage the clutch and start going into the next hear up.
--When in nuetral and I step on the gas a little bit, its almost like the throttle gets stuck a little and over-revs (nothing dangerous but it should stop revving once the pedal is lifted).
--No CEL
Nothing serious, however its is beginning to get a little worse over the past 10,000 miles.
MAF?, dirty Vac hose somewhere??
Any help is much appreciated.
AC