you've got t-stat, road speed and MAF... the MAFs could be from last time you were messing with it... road speed - that could be secondary to the engine speed not matching up to the rest of the car... misfires could be secondary too but it could be due to you previously messing with fuel rail... most of your issues are at 343K kms, which is about 200K miles - find exact number that shows up on your odometer, to figure out when it happen - even though it is not that important... save the error files, clear them and see which ones will return, concentrate on those...

t-stat should be relatively easy to replace... did you unplug it from before? if you did, it could be left over from the last troubleshooting....