2000 3.8 cylinder 2 misfire

Had 171 and 174 codes and did nothing it seams that they have sealed up on there own code has not returned.
Now I get code for cylinder 2 misfire.
I have changed plugs, wires and coil pack.
Code came back on.
Now What? :screwy:
Bill

I recently got p0302 cylinder 2 misfire on my 2000 3.8 .
I changed plugs, wires and coil pack and still got the code. :banghead:
I being lazy and cheep took a short cut to cleaning EGR. ports.
I removed wipers cowl and cover very ease to do.
Then removed upper intake cover, air filter and EGR valve.
Then I took a household canister vacuum with that plastic long skinny end witch now one knows what it is for anyway, and put it next to the EGR port as I picked at the build up with a dental pick.
Then I vacuumed out the port where the EGR valve goes. :smokin:
Worked great will let you know if code comes back as I am going on a road trip this weekend.
Bill

:iceslolan
Code is gone for good problem fixed