Engine idles a little high when in drive

With high idle in park, usually my first test is to block off mouth of throttle body. It should kill the engine, if no or very little effect on idle, You got false air getting in there from somewhere.
What about your cruise control? You can check and clean idle air system, where applicable? Any applicable trouble codes?
I don't know year--make--model?

All the above is normal , except 2000rpm is a little high at idle . can be adjusted down to 1500rpm. the computer adjusts the engine speed . in drive the transmission loads up the engine idle drops to 1000rpm . in park engine unloaded rpm increase all normal.

This happens with a couple of my GM cars. I wouldn't worry about it much.

which engine

You need to clean the IAC again and also the throttle valve and bore, use only CRC brand Throttle body cleaner. After they are thoroughly cleaned disconnect the battery for 5 min's and then drive the car in varying condition for a few days. If that doesn't cure the issue you have more serious problems and will need a scan tool to look into the readings from the MAF, TPS and ECT sensors. High idle cold start is normal then slowly dropping after a few minutes. I assume you never had a check engine light. Correct?

Sounds like the Throttle Position sensor or the Idle Air Control Valve causing the issue

Most likely your (TPS) is out "Throutial Posision Scensor".

auto settings not lined up not a big problem need the right man,had this jeep any other problems and i mean minor little telltail problems before this.adrian,,,,,,,,

Yes, sounds like the idle speed is too high. If you keep driving like that, you will fry the torque converter / turbine. Since idle is computer controlled, you will have to take it for service tune up. There is one possibility that the rich, high rpm idle used for cold start is not disengaging properly after the engine warms up. Air conditioning will raise the idle speed by a couple hundred rpm, so avoid using it until you have the problem fixed. BTW.....warm engine rpm in idle, and neutral should be around 700-800. Anything over 900-1100 will result in a hard shift into 1st gear and dragging at stop lights.

turn the idle screw down on the carburater