4 codes have popped up and i am wondering what to do here
Its a 1996 ford f150 straight 6 4.9l
The codes are
P0174
P0171
P1506
P0301
Also nosup showed up and im not sure what that is
I have done the spark plugs and wires had the oil changed oil filter. If anyone could help that would be much appreciated

 

I've got a recurring CEL with the same codes (minus the P0301). Occasional rough idle but smooth when up at 1200rpm. Cleaned MAF but no help. 1997 XLT w/M5OD and the massive 4.2L. Thoughts?