Hey guys i have a 2012 jk sahara and my check engine light came on . I plugged up my code reader and these codes came up

P0420- Catalytic converter system efficiency below threshold (bank 1)
P2098- Post catalyst fuel trim system too lean (bank 2)
P0152- 02 Sensor circuit high voltage (bank 2 sensor 1)
P0420- Catalytic converter system efficiency below threshold (bank 1)
P2098- Post catalyst fuel trim system too lean (bank 2)

Not sure if its the cat or 02 sensors being that the 02 sensors are over a $100 each and the cats are just over $350 each i just don't want to throw parts at it

Also does anyone know if this is covered under factory warranty?

 

Do a google search for a service bulletin for the 2012 JKs. One of them was a computer update to fix multiple codes.

 

Check with your dealer. The emission control system is warranted for 8 years/80,000 miles I believe. Not sure the O2 sensors are covered under this but the cats are.

 

ok perfect so I'm gonna change the front 02 sensors then clear the codes if it appears again I'm goin to the dealer to switch the cat

 

someone recently posted about getting some codes in a 2012. They thought to go down a similar path as you but decided to take it to the dealer and found that the whacky codes were coming from the dreaded bad left head. If I were you, I would do more research before throwing cost as labor into replacing parts.