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.
Check Engine Light Due to Failed Front O2 Sensoron Subaru Outback
10 people reported this problem
4 people shared problem details
2007 Subaru Outback54,000Visitor
engine light on due to O2 sensor defect and replaced a new sensor at the dealer.
2005 Subaru Outback114,713Visitor
Changed front sensor twice, light again that sensor has problems
2007 Subaru Outback90,000Visitor
irregular idle, rotten smell in area of sensor, codes read. not yet fixed,am calling local dealer (suburban Subaru) tomorrow.
2011 Subaru Outback49,000Visitor
Cost 415.00 at dealer to fix
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