Powertrain
generic / SAE
P0130
O2 Sensor Circuit Malfunction (Bank 1, Sensor 1)
The upstream oxygen sensor on bank 1 reports an implausible signal — typically stuck mid-range, no switching between rich and lean, or no signal at all. Closed-loop fuel control cannot run while this fault is active.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number1 / 30
Possible causes
- Oxygen sensor aged or contaminated high
- Sensor harness chafed against exhaust medium
- Water in sensor connector low
Symptoms
- Check engine light on
- Increased fuel consumption
- Possible rough idle or hesitation
- Failed emissions test
Inspection / repair
- Difficulty: easy
- DIY: possible
- Estimated cost: 60–250 €
- Estimated time: 0.3–1.5 h
- Component: oxygen sensor upstream
- Component: oxygen sensor wiring
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012