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P2097 Diagnostic Trouble Code Discussion for December 2009

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

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Trouble Ticket Help Requests for DTC P2097
Help Request Posted
2005 Subaru Outback i 2.5L MIL Lamp on VIN: 4S4BP61C15
P2097: Post Catalyst Fuel Trim Too Rich (Bank 1). ... multiple codes. replaced the rear o2 sensor and all codes gone but p2097. took to subaru for reflash that might be able to remove this code but only worked for two days. The downstream o2 is reading .875 volts and the upper 2.8 volts. We were told that vol...
December 17, 2009