misfire

My 2004 is being weird, it had the code p0193 so I changed the Fuel Rail Pressure Sensor yesterday. This morning the engine light came back on. I scanned it on the computer and the same code came up. It also said that the truck is misfiring, I don't know what is going on. Does anyone have any...

Here's my version of the wet spark plug issue. Ran like crap yesterday after two days of being parked in the rain. Pulled the boot on back right plug ( I think that's number 8) and it was dripping wet. When the plug boots get wet enough the truck will misfire. If you do this be careful not to...