1999 toyota camry v4 2.2 shuts off at idle
the car keeps shutting off at idle and only idle and we cannot figure out
also when the car is park, the rpms rev up on their own.
things we did..

-changed fuel pump
-unplugged small vacuum hose going to vacuum switching valve (VSV..next to air filter assembly under hood) and car ran fine, plugged it back into VSV and car would shutoff..so thinking that was the problem...replaced that. But now with new VSV car still shuts off..and once again we unplug the small vacuum hose going to it car runs fine.
- took big hose off of the throttle body where the air filter assembly is connected to and where the port was inside throttle body sprayed carberator cleaner down it to clean any gunk out.

PLease help anybody what can it be vacuum leaks? fuel injectors? what is It