Why is my car idling below rpm, jump starts,stalls out at stops? on 2004 Mitsubishi Diamante

At times I have to start it 2-3 times before it will stay on. At times as it is slowing up on my and I press the gas it will jump and go real fast. I have had a complete tune-up, the idle control sensor, and another idle system part replaced as well as a hose replace that had a hole in it. It still has the symptoms I have mentioned.What else could be the problem

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1 answer
POSS IDLE AIR CONTROL VALVE GOING BAD