hey out there, my 97 f-150 4.2L is showing the above codes. I am totally capable of changing any part, but I have two questions. 1. which o2 sensor is bank 2 sensor 1 and 2. is the p1151 lean code a side effect of the bad o2 sensor? Any and all help appreciated-

 

Changed out the o2 sensor, no problem. Started the truck up and no check engine light! So my question is how long does it take the pcm to adjust to the new part?