2007 E450 Van. Dash light came on. OBD2 reader indicates: P2196 Ford - Lack of HO2S-11 Switch Sensor Indicates Rich

I need to find out which sensor to replace. It looks like I need to replace Bank 1, Sensor 1, but I am not sure where it is located. My guess it's located on the manifold, but I'm not sure if it's driver or passenger side.

A friend says, "Look in the owners manual for the van and find out which cylinder is cylinder number 1. Cylinder 1 is always on Bank 1."

The owner's manual has no indication of where cylinder one is located. I do not have a service manual.

Can anyone help me address this issue? I am not highly technical, but I do think I can replace the sensor myself, or at least I would like to give it a try.

Thanks much,

Tom

 

Bump to the top. Is this a 5.4 or the 6.8. What year as well.

 

Senix, Based on VIN, it's a 2007, 6.8 liter.

 

Lets hope some others see it soon for some help.