2004 Suzuki Forenza

Engine Mechanical problem
2004 Suzuki Forenza 4 cyl Two Wheel Drive Manual 65,000 miles

When in neutral gear my Suzuki's engine rev's up to 3000 RPM when idling. Could this be a throttle adjustment or a throttle sensor problem? If not could it be a clutch problem? The engine also seems to take a few extra seconds to shut down when the key is removed from the engine.
February 5, 2010.

Check for vacuum leaks. Check throttle position sensor

Dave H
Apr 30, 2010.