Hi guys,
I'm new here and looking for some advice on what to do. My van is a 2003 Town and country lxi with 250,000 miles. Lately it's been giving me a p0304 misfire code that I'm pulling my hair out trying to solve. I've been to 3 garages to no avail. It has new coil pack, spark plugs, and upstream oxygen sensor. I also had a vacuum and compression test done with good results. The weird thing is that the car runs fine and does not feel like skipping at all. I just don't know what else to do. I have to get this car to pass inspection. You can't have a check engine light on in New York. Any advice?

 

Can you feel the misfire or just the light on?

 

can't feel the misfire at all.

 

so likely carbon build up on the valves do a professional intake cleaning service dicarbon service what ever they want to call it at there shop.