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P1130 Diagnostic Trouble Code Discussion for November 2010

Heated Oxygen Sensor (HO2S-12/HO2S-13) Signal Circuit Demand Changing

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Trouble Ticket Help Requests for DTC P1130
Help Request Posted
1999 Subaru Impreza Outback 2.2L MIL Lamp on VIN: JF1GF4853X
P1130: Air Fuel Sensor (Bank 1 Sensor 1) Circuit Malfunction. This vehicle keeps setting the code listed. It is an air fuel oxygen sensor. If I clear the code the A/F sensor works. If code is present the ECM goes open loop and sensor stays at 3.7V. I read that a heater circuit with too much amps being supplied from the ...
November 22, 2010