So I scanned the computer again the 2nd time this week. so, these are the 3 that repeated themselves. Any and all help here would be appreciated.

P1400 - Manufacturer Control - Auxiliary Emission Controls
P1152 - Manufacturer Control - Fuel Air Metering
P0304 - Cylinder 4 Misfire Detected

As far as the 3rd one, I haven't even noticed a misfire, and i am used to that since my other truck's old 4 banger had a bad misfire. I am assuming that it is slight, but enough to trip the code. Any suggestions?