P0130: O2 sensor circuit, bank 1 sensor 1

What the code tells you on its own

System
Powertrain

Engine, fuel, air, ignition, emissions and transmission. The overwhelming majority of what workshops bring to the AI.

Functional group
Lambda and O2 sensors
Subsystem
Fuel and air metering

Diagnostics

What we see when P0130 turns up

Measured across the diagnostics run through Wrenchlane, not taken from a reference table. Figures as of 2026-10-06.

Diagnostics
7

May 2026 to October 2026

Separate workshops
7

Not one shop meeting it repeatedly

Arrived code only
29%

No symptom description entered at all

Most common marque
BMW

Where we have seen it most

These are counts from our own work, not a claim about how common the fault is across all vehicles. They describe what independent workshops brought to us, which is a narrower and more specific thing.

Real cases

Real cases with P0130

Diagnoses of P0130 on real cars, written up: the car, the codes it came in with, the causes ranked and what to check first.

FAQ

Frequently asked questions

How do I run a diagnosis?

Select the vehicle on Start, click the Diagnostic card and choose New diagnostic. Fill in the description, the error codes and the mileage, then click Analyze.

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Do I have to type the codes from my scan tool?

No. Click the camera button next to Error codes and take or choose a photo of the scan tool's screen; WrenchLane reads the codes and their descriptions into the form. You can also speak them with the microphone.

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Are the public fault code pages built from my diagnostics?

They use diagnostics run in WrenchLane, with no workshop, customer, registration number or VIN shown. Each fault code page shows how often the code was seen and in how many workshops.

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Run P0130 against the car in front of you

Enter the code and the symptoms and get ranked probable causes for that specific vehicle, with the checks in the order worth doing them. Free account, no card.