I was driving the other day and got the check engine light. I checked the code that I am getting and I am seeing "P0153 02 Sensor Circuit. Slow Response. (Bank 2 Sensor 1)".

Where is the location of this sensor on a 98' F-150 5.4L V8? From articles I have read it appears no one seems to have a definitive answer as some say passenger side and some say driver side.

 

bank 2 is driver side. bank 1 is passenger side. if you look from the front of the motor the cyl's go 1,2,3,4 passenger side and 5,6,7,8 driver side.

it is your upstream o2 on the driver side.

 

shifty 85 is correct. To clarify, when he says upstream O2, he means before the catalytic convertor not after. Or in other words, between the cat and the engine.

 

To help you further understand, the sensor has an electrical heating element in addition to it's output from being heated by exhaust gas.
The slowness could be contamination causeing slow reponse or the heater running to cold due to a connector issue causing a voltage drop.
An open heater circuit would be reported by a different code.
Deeze computers are schmart!
Sometimes all you need to do is heat it's tip on the bench with a torch to burn off the contamination but not always gaurenteed to work if the substrate is fully blocked.
A motor that burns oil can play hell with these sensors or even poor fuel.
Good luck.