my wifes 98 tour is doing the same thing.
I pulled the code P0301 misfire, P0171 & P0174 usally means you have a bad MAF or low fuel pump presure. I put in new plugs and changed the fuel filter still no change, next tried the MAF off my tour and still the problem remains, Want to check pump pressure to rule it out looked high and low for my fuel pressure tester but it nowhere to be found when I need it.
So,I going to the junkyard in the morning to get IACV for it to see if it will quit (I mean idle smoothly).
