Check Engine Light Due to Failed Front O2 Sensor on Subaru Forester

The front oxygen (air fuel ratio) sensor element may develop a crack, causing the Check Engine Light to illuminate. Subaru has recalled certain models to replace sensors that may fail. The Subaru service program number is WXW-80, this is not a government mandated recall.


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Average mileage: 125,256 (16,400–193,000)
8 model years affected: 1998, 2000, 2001, 2002, more2003, 2004, 2005, 2011
58 people reported this problem
37 people shared problem details
2002 Subaru Forester120,000
the check engine light is on and it hesitates,i need to take my foot off gas and lowly climb speed,and while stopped at light etc it struggles to remain at a steady idle and often will stall, ive replaced both sensors twice, i have owned 3 subarus and if this prob isnt fixed a new wrx is NOT in the near future as planned where do i go for this problem, i just need the sensor i can install
2005 Subaru Forester120,000
check engine light on, cruise flashing, another PO131 code on my 2005 Subaru
2005 Subaru Forester133,000
Check engine light on and cruse flashing. Code indicates O2 sensor.
my check engine light is on and computer code po 420 comes up
Check engine light - Oxygen Sensor
2005 Subaru Forester115,000
engine light on, cruise control flashing. diagnosed by dealer from 2 visits 18 months apart.
2003 Subaru Forester139,000
P0032 check engine light code
2003 Subaru Forester148,000
Check engine light on, sensor needs to be replaced.
Bad front o2 sensor... Bought new one, jacked up car and fixed myself
2003 Subaru Forester125,000
Check engine light leading to code check for O2 sensor
Check engine light came on. Took the car to be checked. Mechanic said sensor was not functioning an had to be replaced. It was fixed for $351: $210 for the sensor and $141 for labor.
2003 Subaru Forester105,000
check engine light went on. used a reader to find get code - o2 sensor
2005 Subaru Forester193,000
Check engine light. Code P0031.
Front number one o2 sensor bad. Is there a recall for this model ?
2002 Subaru Forester160,000
Bought the car from a dealer who obviously reset the light because it came on within 60 miles of ownership, so the mileage above probably isnt the most accurate.
2004 Subaru Forester115,000
check eng light, sensor fault code for front sensor.
2003 Subaru Forester166,813
Check eng light is on, code is for O2 sensor B1 S1
2002 Subaru Forester142,000
2002 Subaru Forester. O2 sensor causing check engine light to come on. Now could be linked to transmission lag-?
took it to the dealer. it went away for a few months and been back since.
Replaced sensor spark plugs ,spark plug wires,fuel filter
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