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What is your question?
My car first started having problems about a month ago. When I started it up it would rev up to 2000 RPMs then when I put it in gear it wanted to stall also was overheating. So I replaced the coolant temp sensor & added coolant. Then I had to replace the radiator due to crack at top, replaced thermostat & coolant all at same time. Car seemed fine for about a week. The RPMs began running low in park and while idling, almost stalling. And when the car warmed up it would overheat. I took it to Autozone to get a code reading. It came back p0303 misfire #3. So I changed the spark plugs & wires. Car was good for a day then started sputtering while at low speeds, idling & parked. Still overheating too. I'm thinking about replacing the ignition coils next. Should I do that or could it be something else?
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Stop. Check for internal engine coolant leak. I suspect a breach of your cooling system at the cylinder head, from cracks or from a leaking gasket. The overheating the vehicle initially had likely took out these components. Please enlist the guidance of a local technician who can check the cooling system for the presence of engine hydrocarbons (a dead giveaway) and check the combustion chamber for the presence of coolant.
So I've done nothing else to my car. Only drove it maybe 15 miles a day. Its driving like normal and not overheating but the temp needle goes up a bit then back down. Engine lights still on. The people at Autozone said sometimes you have to drive it like a 100 miles to let it run through its cycle.