2000 GMC Sonoma ZR2 P0101, P0131, P0143, P0151, P0155 - Cold Start Miss and Fluctuating Codes

I own a 2000 GMC Sonoma ZR2 with 4x4, automatic transmission, and a 4.3L V6 engine. After a complete engine and transmission rebuild, the vehicle initially ran well except for a noticeable miss when cold. It would idle decently but struggle to reach 45 mph—taking nearly a mile to gain momentum, even at full throttle. Once warmed up, it performed normally. I replaced the temperature sensor with no improvement. The issue seemed to resolve after letting the vehicle sit and run for about five minutes before driving. On Friday, while commuting home from work, the engine suddenly began running poorly—stumbling severely during acceleration. Upon arrival, I scanned the system and found five pending codes: P0101 (Mass Airflow Sensor Range/Performance), P0131 (O2 Sensor Bank 1 Sensor 1 Low Signal), P0143 (O2 Sensor Bank 1 Sensor 2 Slow Response), P0151 (O2 Sensor Bank 2 Sensor 1 Low Signal), and P0155 (O2 Sensor Bank 2 Sensor 2 No Signal). I let the vehicle sit overnight and scanned again—this time, all codes were cleared. The Check Engine Light was off, and the engine ran significantly better. Despite this intermittent behavior, I'm unsure where to begin troubleshooting. The symptoms suggest a cold-start issue with potential sensor or wiring problems. Any guidance on diagnosing these specific OBD2 codes in a 2000 Sonoma ZR2 would be greatly appreciated.