P1109 Subaru HO2S22 Sensor Circuit Voltage Too Low Air Leak

P1109 Subaru HO2S22 Sensor Circuit Voltage Too Low Air Leak

Possible causes
– Faulty HO2S22 Sensor
– HO2S22 Sensor harness is open or shorted
– HO2S22 Sensor circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
Subaru Vehicle:Subaru Forester,Subaru Impreza,Subaru Legacy,Subaru Outback,Subaru Tribeca,
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