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Common codes
P0420P0300P0171P0455P0442P0128P0401P0113

P0130: Oxygen sensor circuit malfunction (Bank 1 Sensor 1)

Drive carefully. Get it checked within a week or two.

Can I drive with P0130?

Yes, but drive carefully and get it checked soon. The upstream O2 sensor signal is erratic, making fuel adjustment inaccurate and reducing mileage.

What does P0130 mean?

P0130 stands for O2 Sensor Circuit Malfunction (Bank 1, Sensor 1).

Symptoms you may notice

  • Drop in gas mileage by 10% to 15%
  • Slight hesitation or sluggish response when accelerating
  • Check engine light illuminated

How much does it cost to fix?

Repair costs for code P0130 depend on the specific underlying root cause, ranging from simple DIY checks to component replacement. The table below lists the most common causes and rough price ranges in USD:

  • Aged or carbon-coated upstream oxygen sensor
    $80-$220 common
  • Exhaust leak upstream of the sensor
    $50-$180 possible
  • Damaged or melted sensor wiring harness
    $40-$110 possible
  • Oil or silicone contamination from leaky valve cover
    $70-$200 rare

What to do next

  1. Inspect the upstream O2 sensor wiring for burns against exhaust heat shields.
  2. Listen for ticking exhaust leaks near the exhaust manifold.
  3. Replace the upstream Bank 1 oxygen sensor.
Last updated: October 2026

Related codes

P0131 P0132 P0133 P0135
General guidance only, not a professional diagnosis. If the check-engine light is flashing, or the car is running rough, overheating or losing power, stop driving and get help.

About this code

Code P0130 indicates that the upstream oxygen sensor on Bank 1 (the cylinder bank containing cylinder 1) is not sending an acceptable voltage signal. This sensor is the engine's primary feedback tool for adjusting fuel injection. When it malfunctions, the engine runs rich, leading to increased emissions and poor mileage. You can drive carefully while scheduling a replacement.