P0130 HYUNDAI HO2S Circuit Bank 1 Sensor 1

Possible causes
– Faulty Front Heated Oxygen Sensor Bank 1
– Front Heated Oxygen Sensor Bank 1 harness is open or shorted
– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection
– Inappropriate fuel pressure
– Faulty fuel injectors
– Intake air leaks may be faulty
– Exhaust gas leaks
Tech notes
Replacing the O2 Sensor 1 usually takes care of the problem
When is the code detected?
The response of the voltage signal from the sensor takes more than the specified time.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– High Fuel Consumption
– Excessive Smoke from Exhaust
P0130 HYUNDAI Description
The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the Engine Control Module (ECM). The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.
HYUNDAI Technical Service Bulletins for P0130 code
2000 HYUNDAI ACCENT ENGINE AND ENGINE COOLING
2000 HYUNDAI ACCENT ELECTRICAL SYSTEM
2001 HYUNDAI ACCENT ENGINE AND ENGINE COOLING
2001 HYUNDAI ACCENT ELECTRICAL SYSTEM
2002 HYUNDAI ACCENT ENGINE AND ENGINE COOLING
2002 HYUNDAI ACCENT ELECTRICAL SYSTEM
2003 HYUNDAI ACCENT ENGINE AND ENGINE COOLING
2003 HYUNDAI ACCENT ELECTRICAL SYSTEM
2004 HYUNDAI ACCENT ENGINE AND ENGINE COOLING
2004 HYUNDAI ACCENT ELECTRICAL SYSTEM