Has anyone experienced the same or similiar issue? Upon startup, engine idle spikes to 1200 to 1500 rpm and drops down to approximately 1000 rpms until the engine warms up and then idles regularly around 700 rpms. Did some research and sounds like maybe a idle air control valve or throttle position sensor?

2005 Dodge Magnum 3.5L V6 AWD 90,000 miles