P0130 HUMMER - HO2S Circuit Sensor 1
- 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
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.
- Engine Light ON (or Service Engine Soon Warning Light)
- High Fuel Consumption
- Excessive Smoke from Exhaust
P0130 Hummer Description
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