P CODES (POWERTRAIN) P1300 - P1399 P1374 Questions

Can Somebody Help Me With These Codes, The Car Is Running Well, But Starting It Have To Push Accelerator Pedal A Little P0300 P0452 P1362...

I Have A 1998 Malibu With A 3.1l Engine. It Started Running Rough At Low Speed A Couple Of Weeks Ago. Sometimes At Highway Speeds I Notice...