Hey, I am a newbie here. But I just bought my used F-150 a few weeks ago. It is a 4.6L 3v, extended cab xlt 4x4. Like 15 minutes after driving it away from the dealer.. the dreaded check engine light pops on. So the next day I had them scan it. O2 sensor seemed to be the problem. So they promised to fix it for me free of charge. End of the story they "Reprogrammed PCM in accordance with TSB 12-6-16" Can I get someone to look this up. Because I feel this problem has not been dealt with in a correct manor.

EDIT: should probably mention its a 2009


Thanks in advance,
Jeff