2003 Dodge Neon rough running help!

I'm pretty experienced with neons 1st gen, I've had 3. Mine also shudders and misses a tad when cold for a minute or two. More in the cold. I changed my timing belt at about 200,000 and it looked brand new. I would change the plug wires, o2 sensor and run a bunch of injector cleaner in the next few tanks should help. I always buy stick neons, faster, better mileage and reliability.