Mitsubishi Repair: 98 talson esi tubo adeed!, dsms, idle air controller

Question
ok i just bought this car beore i transfer title car ran fine drove it a couple hours it gets hott when it gets hott idle jump up and down sometimes stalls if i start it and run it down the street will idle fine for a few mins then start same process over was thinking position idle senson or electrical or a feul problem maybe really have no clue dont know nothing about dsms it is an esi someone put a turbo on it, when it running rite it runs good motor sounds strong when it starts acting up its pretty bad!

Answer
Mike,
This sounds like a condition called idle surge.  This typically happens when the idle speed controller (sometimes called the idle air controller) malfunctions and does not at what speed to hold the idle at.  You can have a mechanic check the ISC to see if functioning properly.
Good luck!