0 like 0 dislike
459 views
by
after driving a full day p1151 showed up
Vehicle: 2002 ford expedition 5.4l

1 Answer

0 like 0 dislike
by (13.5k points)
P1151 Lack of H02S switching Bank 2 Sensor 1 Indicates lean

On the 02 sensor of Bank 2 the most common cause is when there is a poor mating connection. On the connection they are not that easy to reach so proper connection has to be ensured. Other than that you can be looking at a vacuum leak, But in many cases because it set on just one of the Bank , poor connection is suspectable.

33.7k questions

32.5k answers

1.3k comments

23.0k users

Need A Repair Shop?
Find local automotive repair shops in your area.
...