Have an '02 Chrysler "Pacifica" 3.3 L ( ?) V6, idles too fast, what to do? (read on)?

Update: Cables are not tight, throttle body butterfly seems seated , I push on it towards closed, no difference (no adjustment I can see). A "hiss" from around heater, I don't think it is a vacuum leak as carb cleaner sprayed at the noise or intake plenum does nothing.
Update 2: New plugs. Yes, Lotsa codes but, it doesn't pass smog so "engine" light always on. There is a crank off a position sensor rheostat ( I Think) near the intake plenum. I cant find where the lever went. Turning this rheostat seems to do nothing. Car otherwise starts, runs very well, good mileage... show more New plugs. Yes, Lotsa codes but, it doesn't pass smog so "engine" light always on. There is a crank off a position sensor rheostat ( I Think) near the intake plenum. I cant find where the lever went. Turning this rheostat seems to do nothing. Car otherwise starts, runs very well, good mileage and acceleration ( for a big car).
Update 3: I mean to say, Working on it for renter. He hasn't $ for a new one. Car Really works well for its age/miles.
Update 4: Neither do I . A new Crunchler would be $34K,. My Harley; Used; set me back $6K and I am having trouble paying that off.
Update 5: Owner got it to Auito Zone, codes definitely said bad EGR. Royal Pain to replace, not serviceable and stuck. (Unlike YouTube videos showing: "how to clean".) New one only $35, I think we R OK. That hissing must be plenum; car also needs a few new hoses,battery cables, a new exhaust bolt. A loose... show more Owner got it to Auito Zone, codes definitely said bad EGR. Royal Pain to replace, not serviceable and stuck. (Unlike YouTube videos showing: "how to clean".) New one only $35, I think we R OK. That hissing must be plenum; car also needs a few new hoses,battery cables, a new exhaust bolt. A loose "crank" I am sure goes below plenum. I will later remove and reseal plenum, replace all I see, About 3 others worked on this car in last 2 years...
Update 6: Thank U all!.
Update 7: On second thought, I think plenum from junker, from different year/model. "Crank sensor" may simply be left to plug a hole and goes nowhere. Would solve a mystery. Dont you love Frankensteins?
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