Wondering if anyone has ever encountered this one:
Code for bank 2 sensor 2 came up, so I changed that sensor, no problem. Noticed a lot of corrosion on the old sensor plug and in the socket when I pulled it out. Put new one in and sure enough, 1 day later the CEL is back on. Just took a closer look and it turns out that one of the four pins in the socket is actually so corroded, it broke off in the old sensor socket and is now gone from the plug on the truck. Thus, it looks like I need to change the socket for sensor 2 on the underside of the floor under the driver's seat. Anyone ever had this problem? How hard is it to do / is this a part I can get from the dealer as a stand alone?