P0301 Simply Cylinder 1 One Misfire Detected
P0174 Check for vacuum leaks.
System Too Lean Bank 2. PCM's Adaptive Fuel Strategy has reached its Rich calibrated limit for bank 2.
In plain English, this means that the PCM is adding fuel like crazy to even out the Air/Fuel Mixture because it has detected a vacuum leak in bank 2.
The vacuum leak may be real or it may be a “perceived vacuum leak” caused by some failed sensor.
P1336 It is basically saying the sensor is sending erratic signals.