November 10, 2011From my bro in law---
So our work truck, a 2000 F-150 with the 4.2 V6, had the engine light come on. We brought it to AutoZone and had the computer scanned. Spit out a P0174 code. We replaced the Bank 2 Sensor 1 O2 sensor, the engine light came back on a few days later. We went back to AutoZone and scanned the computer again. Spit out the same code. We just replaced the MAF sensor, but the light came back on again after 5 days. Anyone know of anything else to check?