Hi there,
Since replacing the sensors hasn't solved the issue, it's likely a wiring issue. Here is a list of other possible causes.
P0130 SUBARU - O2 Sensor Circuit Malfunction Bank 1 Sensor 1 Read more: https://www.autocodes.com/p0130_subaru.html
P0037 SUBARU - HO2S12 Heater Control Circuit Low Read more: https://www.autocodes.com/p0037_subaru.html
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