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2012 Subaru Legacy 2.5i Premium 2.5L Excessive Emissions, MIL Lamp on
Posted to Asian Driveability on 1/11/2019 9 Replies

I am hoping the Subaru guys can help give me some direction. This car came in the the P2097 - Post catalyst fuel trim system too rich bank one. I have gone through the factory procedure completely and I still don't have a resolution. I have replaced the fr...

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car Vehicle Data

2012 Subaru Legacy 2.5i Premium

VIN 4S3BMBG64C
Engine2.5 L / 4 cyl / GAS
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, MIL Lamp On
OccursAlways

Trouble Codes

P2097Downstream Fuel System Rich - HO2S-12 (Bank 1 Sensor 2)
Open Help Request

car Vehicle Data

2012 Subaru Legacy 2.5i Premium

VIN 4S3BMBG64C
Engine2.5 L / 4 cyl / GAS
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, MIL Lamp On
OccursAlways

Trouble Codes

P2097Downstream Fuel System Rich - HO2S-12 (Bank 1 Sensor 2)