Quick checklist
Check O2 sensor wiring, test sensor, check for exhaust leaks
OBD2 Codes
P0130 – O2 Sensor Circuit Malfunction (Bank 1 Sensor 1)
O2 sensor circuit problem
Details
The upstream O2 sensor circuit is not working correctly.
Typical causesFaulty O2 sensor, wiring issue, exhaust leak
SymptomsCheck engine light, poor fuel economy
SeverityMedium
DIY checksCheck O2 sensor wiring, test sensor, check for exhaust leaks
ToolsOBD2 scanner, multimeter
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FAQ
Common questions
What causes P0130?
Faulty O2 sensor, wiring issue, exhaust leak
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