P0130 – Meaning, Causes, Symptoms, & Fixes
Code P0130 Definition
O2 Sensor Circuit Malfunction (Bank 1, Sensor 1)
What Does P0130 Mean?
The P0130 code is triggered when the Engine Control Module (ECM) fails to properly detect activity from the O2 sensor. The O2 sensor transmits a voltage in relation to the amount of oxygen in the exhaust. This voltage is indicated by a value typically between .1 to .9 volts. The value of .1 means the engine is “running lean” and has too much air and not enough fuel. The value of .9 means the engine is “running rich” and has too much fuel and not enough air causing it to run hotter than usual. If the ECM detects that the oxygen sensor is reporting outside of the normal range, this will trigger the P0130 code and eventually affect your fuel economy.
- Check engine light
- Lower fuel economy
- Excessive smoke from exhaust
- Engine stalls/runs rough
*No noticeable adverse conditions in some cases
- Corrosion/damaged O2 Sensor connector
- Frayed wiring/connection to O2 sensor
- Malfunctioning ECM
- Intake vacuum air leaks
- Faulty O2 Sensor
Code P0130 Severity – Low
This trouble code will not prevent your vehicle from running. The most common result(s) are decreased fuel economy and fuel volatility. However, if left unsolved, this code could eventually damage the catalytic converter, and cause your engine to fail emissions tests.
Code P0130 Common Diagnosis Mistakes
Prematurely replacing the O2 sensor before attempting to visually inspect and test with a scan tool or special equipment, such as an oscilloscope, to ensure the problem has been resolved.
- Tools Needed to Diagnose:
Difficulty of Diagnosis and Repair – (1-4)
- Check to see if there are any other codes along with P0130 and clear your Check Engine Light with FIXD.
- Check the freeze frame data in order to pinpoint the issue.
- Conduct a visual inspection of wiring around the O2 sensor for fraying or disconnection.
- If the problem persists, consider replacing the O2 sensor.