Noticed some sputtering when I stepped on the gas and slow acceleration (service engine soon light also) so I took my 03' Range Rover HSE to Pep Boys and they pulled this code. I did some Googling and seems like its some kinda oxygen sensor. Anyone familiar with this code or what it could be? Steer me in the right direction please?

Thanks!

 

How many miles?

This code is an O2 sensor fault, however is usually caused by a cracked weld on the catalytic converter. Rover stepped up and put out a recall action that covers this failure until 11 years or 120k miles from original sale.

 

It has 129k miles on it now...128k when I bought it. Hopefully this is something a new set of O2 sensors can fix. Thanks, just needed to confirm.

 

Did you get rid of the P1173 Code with new O2 sensors?

I'm having the same issue, and replaced both front O2 sensors, and still the P1173 code. The PVC hoses are all good, and not finding any cracks on/near the cats, so I'm thinking it must be the rear sensors.


Thanks!

04 RR HSE