96 dodge intrepid erratic idle?

i recently bought a 96 dodge intrepid pretty sound car besides the erratic idle. when i first start it, it will rev up to 2000 rpm and then it will bounce between 1300 and 2000 rpm and once it warms up it bounces between 1600 and 2000 rpm i have been told that it is usually one of two things or sometimes both, either it being the idle air control motor or the exhaust gas recirculation valve. knowing that we took it to the place that we bought it from and the mechanic there pulled the harness off the iac and said that it was that i am just sort of looking for a second opinion|||that's the two most common causes of it,if its the iac valve that may be able to be cleaned out,you might also want to have the computer scanned on it that might reveal something else that would be causing that too happen,a bad throttle position sensor will also cause the same thing too happen,good luck with it.|||your welcome,im glad it helped,good luck.

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