P0130 – O2 Sensor Circuit Malfunction (Bank 1 Sensor 1)

System: Emissions
Dashboard light: Check engine light (MIL)
Check-engine blink code: —
Applies to: Generic OBD-II meaning. Not every code is used by this car.
Description: O2 Sensor Circuit Malfunction (Bank 1 Sensor 1)
Detection / symptoms: 1.Check engine light on
Possible causes: 1.Usually the cause of P0130 is a bad oxygen sensor, however this isn't always 2.The case. If your o2 sensors haven't been replaced and they are old, it's a 3.Good bet that the sensor is the problem. But, It could be caused by any of the 4.Water or corrosion in the connector 5.Loose terminals in the connector 6.Wiring burnt on exhaust components 7.Open or short in the wiring due to rubbing on engine components
What to check: 1.Read the code and live data with an OBD-II scanner 2.Look for exhaust or vacuum leaks and check the wiring of the sensor or valve 3.Test the part before replacing it 4.Fix the cause, clear the code and test-drive
Confidence: medium (generic OBD-II definition, not checked against the factory manual for this car)

Generic OBD-II meaning (obd-codes.com), not checked against this car's factory manual. Clear the code and test-drive to confirm it returns. Search all fault codes · Common problems · Warning lights