P0130: O2 Sensor Circuit Malfunction (Bank 1, Sensor 1)
2 vehicles · 2 makes · $100-$900 repair
Most Reported On
P0130 is an OBD-II diagnostic trouble code meaning “O2 Sensor Circuit Malfunction (Bank 1, Sensor 1).” This code indicates a malfunction in the upstream oxygen sensor circuit for bank 1, sensor 1 — the front O2 (or air-fuel ratio) sensor mounted before the catalytic converter on the side of the engine containing cylinder 1. This sensor measures the oxygen content of the exhaust so the computer can fine-tune the fuel mixture, and the code sets when its signal is missing, out of range, implausible, or not switching as expected. A faulty reading here can hurt fuel economy, increase emissions, and trigger the check engine light. It generally points to the sensor itself, its heater or wiring, or sometimes an exhaust/fuel condition the sensor is reporting. This code is most commonly reported on 1998-2002 Chevrolet Prizm, and 2000-2012 Peugeot 206, with repair costs ranging from $100 to $900.
Common Causes
Typical Repair Cost
Based on 2 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P0130, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
FAQ
What does P0130 mean?
P0130 stands for "O2 Sensor Circuit Malfunction (Bank 1, Sensor 1)." This code indicates a malfunction in the upstream oxygen sensor circuit for bank 1, sensor 1 — the front O2 (or air-fuel ratio) sensor mounted before the catalytic converter on the side of the engine containing cylinder 1. This sensor measures the oxygen content of the exhaust so the computer can fine-tune the fuel mixture, and the code sets when its signal is missing, out of range, implausible, or not switching as expected. A faulty reading here can hurt fuel economy, increase emissions, and trigger the check engine light. It generally points to the sensor itself, its heater or wiring, or sometimes an exhaust/fuel condition the sensor is reporting.
What are the most common causes of P0130?
The most common causes of P0130 are: Failed or aged upstream oxygen / air-fuel ratio sensor, Damaged O2 sensor wiring, connector, or heater circuit, Exhaust leak near the sensor, Blown fuse or open in the sensor heater power supply, Corrosion or poor contact at the sensor connector, Vacuum leak skewing the fuel mixture, Contaminated sensor (oil, coolant, or silicone). The specific cause varies by vehicle.
How much does it cost to fix P0130?
Repair costs for P0130 range from $100 to $900, depending on the vehicle and root cause.
Which vehicles are affected by P0130?
Au7o has documented P0130 across 2 vehicle models from 2 manufacturers: Chevrolet, Peugeot.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.