P0131 SUBARU -

Question

I have a 2005 subaru outback and just had the front 02 sensor replaced about 6 months ago and now I am getting 2 codes a p0131 and a p2097....Is it one sensor causing this or are both sensor bad??

Thank you

Brett

Answer 1

P0131 SUBARU - HO2S11 Circuit Low Voltage

Read More: https://www.autocodes.com/p0131_subaru.html

P2097 SUBARU - Post Catalyst Fuel Trim System Too Rich Bank 1

Read more: https://www.autocodes.com/p2097_subaru.html

The first code is for the front O2 sensor and the second code for the rear O2 sensor. You should start by checking for exhaust leaks. if no leaks are present you may have to replaced both sensors.