Idle 500-1000 rpm ?

Hi


My Ranger idles cold between 500-1000 rpm.
Is a 3.0 1994. TPS? IACV? 
Is over when you put it in driver.
Anybody had that with their Ranger?
Also starts ruff ,turns over twice and stalls.
But runs good when warm.
Had plugs ,wires ,distrbt cap,roter,all filters ,oil  changed.
Is it fuel pump,sensors ,valve s,vacuum,eci,tps,icv ore whatever?

Thanks for the help.



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Find the specs to test the IAC with an ohm meter, and I will bet your are close or out of spec.

Ill see if i can find those specs somewhere.
Cleaning it didnt help much.
Ill let you guys know.