Check MyEngine Light
P0130Starts at: OK to drive, fix when convenient

Oxygen sensor signal problem (bank 1, sensor 1)

The oxygen sensor checks the exhaust so the computer can set the fuel mix. Sensor 1 sits before the catalytic converter (the exhaust part that cleans the fumes) on the side of the engine with cylinder 1, and its signal looks wrong.

SensorsFix: Moderate, basic tools

What usually causes it

  1. A worn out or failed oxygen sensor
  2. A loose plug, or burned or chewed wires near the sensor
  3. An exhaust leak near the sensor
  4. An engine running far too rich or too lean

Check this first

Let the exhaust cool, then look at the wires going to the sensor for burned, melted or chewed spots. Make sure the plug is tight.

What to watch for

  • Poor gas mileage
  • Rough idle or hesitation
  • A rotten egg smell from the exhaust

Can I keep driving?

We rate P0130 as OK to drive, fix when convenient, as a starting point. Keep an eye on the signs below. If the light starts flashing, stop driving soon.

Quick answers about P0130

What does P0130 mean?

Oxygen sensor signal problem (bank 1, sensor 1). The oxygen sensor checks the exhaust so the computer can set the fuel mix. Sensor 1 sits before the catalytic converter (the exhaust part that cleans the fumes) on the side of the engine with cylinder 1, and its signal looks wrong.

Can I keep driving with P0130?

We rate P0130 as OK to drive, fix when convenient, as a starting point. Keep an eye on the signs below. If the light starts flashing, stop driving soon.

What usually causes P0130?

The most common causes, in order: A worn out or failed oxygen sensor; A loose plug, or burned or chewed wires near the sensor; An exhaust leak near the sensor; An engine running far too rich or too lean.

Estimates only. A mechanic should confirm. The same code can mean slightly different things on different cars; the app explains it for your exact year, make, model and mileage.