O2 sensor codes

[Yeehaw]

My car started throwing random codes about two weeks ago. It started with a P219B and a P2629. I deleted them to see if it was just a fluke. Drove about 70 miles and the light popped back on. Plugged my scanner in and it had a completely different code of P2098. P2629 is the front sensor, bank 2 running too lean. The P2098 is the back sensor same bank. I am figuring the issue is NOT an O2 sensor. Just trying to figure out why the car is running lean. It is running on 93 octane and the car is 100% stock. Any ideas what to start looking at would be much appreciated. Thanks.


-Kyle
2013 SHO PP, all led lightning. Smoked tails.
Sent from my iPhone using Tapatalk

 

[SHOdded]

How many miles on the SHO? Since bank 2 is the radiator side, it's worth pulling the plugs on that bank and assessing engine condition. Also check around the oxygen sensor area for any contamination with dirt or oil.

Could be faulty fuel injectors, but apparently could be a bad EVAP purge valve too, per this TSB for the Fusion/Escape:
http://www.revbase.com/BBBMotor/TSb/DownloadPdf?id=173431

TSB 11-11-28: MIL LAMP ON WITH DTCS P144A, P2196, P2198, P1450, P0455, P0456, AND/OR P0457 BUILT ON OR BEFORE 3/4/2011

Check spark plugs to see if carboned/wet/fuel smell. Clean the MAP sensors. Check for vacuum leaks causing unmetered air.

 

[Yeehaw]

It has 68k on it now. I was thinking maybe an injector but the car doesn't seem to miss. It has way more than enough power.


-Kyle
2013 SHO PP, all led lightning. Smoked tails.
Sent from my iPhone using Tapatalk

 

[SHOdded]

Check the underbody (passenger compartment area). There's usually a shield there to protect fuel and EVAP components. If it looks damaged or loose, the problem might be underneath there. Also check owner.ford.com for any outstanding recalls. If the car was bought at a Ford/Lincoln dealership, they are responsible for having performed the recalls prior to sale, and definitely post-sale.

 

[Gbczyk84]

I have a 2013 PP as well, had a code for the rear O2 and the dealer replaced the catalytic converter under emissions waranty.

Found it strange they would replace the converter and not the O2 sensor, however, the code did not return after.

Might be worth it for you to take it to a dealer if codes are still on. My car was at 64K miles at time of occurance.

 

[Yeehaw]

It is stuck on the p219b code now. It's definitely a pre cat issue. I will have to check under the passenger side. Thank you.


-Kyle
2013 SHO PP, all led lightning. Smoked tails.
Sent from my iPhone using Tapatalk