2007 E450 Van, V10. 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. 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

 

If this is your one and only issue then passenger's side front cylinder is #1---they will follow #2,3 4 & 5 following to the rear.

Driver's side front would be #6 etc.

 

Ok, thank you JWA. That will get me started.

 

Sometimes that sort of code will be accompanied by others too---make sure you don't have any other DTC's pending or showing up.

Do you have your own scan tool or relying on Auto Zone et al?

 

I have my own scan tool. This was the only code showing. I have additional details/screen shots I am happy to forward if that would be helpful. The scanner is a ELM327 wifi scanner I'm using in conjunction with OBD Doctor app on my iPhone.

I am going to look in morning to see if I can locate the sensor on the exhaust pipe downstream of the manifold on the passenger side.

 

I don't know that scanner and do NOT trust anything "wifi"---too old here!

If that's the only DTC showing and it points directly at just one sensor then changing it might be the fix. We have a V10 gasser-specific forum here where your DTC could be better defined and possibly other fixes suggested. Those experienced in understanding a scanner's output might find additional info helpful.

Too often one code has other related issues that need addressing too. Not a bad idea to know what else might be necessary.

HTH

 

Thanks much! I posted in the V10 forum also but didn't get much feedback.

Gonna have a look at the vehicle this morning.

Tom