P0130
Fix within 1-2 weeksYour engine's primary oxygen sensor (the one before the catalytic converter on the side with cylinder #1) isn't sending the correct signal to your car's computer, which means your engine can't accurately adjust its fuel mixture.
Code P0130 means your primary oxygen sensor (Bank 1 Sensor 1) has a circuit malfunction. Common causes: Faulty O2 sensor (70%), wiring issues (20%), exhaust leaks (5%). Drivability: Yes, for short trips. Repair cost: $50-$200 DIY, $150-$500 professional.
Can I Drive With P0130?
Yes, for short trips only
Essential trips under 10 miles, avoid highways. Prolonged driving will waste fuel and harm your emissions system.
Stop driving immediately if: Flashing Check Engine Light, loud noises from the exhaust, burning smell, rotten egg smell, or significant power loss.
Symptoms of P0130
- 1Check Engine Light is on
- 2Reduced fuel economy
- 3Engine may run rough or hesitate (less common)
- 4Failed emissions test
Common Causes of P0130
Parts most likely causing this code, ranked by probability
The sensor itself wears out or fails internally, sending an incorrect or no signal to the engine computer.
70% of P0130 cases are fixed by replacing this part
Frayed wires, corrosion, or a loose connection can interrupt the sensor's signal to the engine computer.
20% of P0130 cases are fixed by repairing wiring or connectors
A leak in the exhaust system near the O2 sensor can allow unmetered air in, skewing sensor readings.
5% of P0130 cases are fixed by repairing an exhaust leak
Exposure to oil, coolant, or fuel additives can foul the sensor, preventing accurate readings.
5% of P0130 cases are fixed by replacing a contaminated sensor
Check These First (Before Buying Parts)
- Visually inspect the Bank 1 Sensor 1 oxygen sensor and its wiring for any obvious damage, fraying, or corrosion.
- Check for any exhaust leaks near the upstream oxygen sensor. Listen for hissing sounds or look for soot around exhaust joints.
How to Diagnose P0130
- 1Visually inspect the Bank 1 Sensor 1 oxygen sensor and its wiring for any obvious damage, fraying, or corrosion.
- 2Check for any exhaust leaks near the upstream oxygen sensor. Listen for hissing sounds or look for soot.
- 3Use an OBD-II scan tool to monitor the live data from the Bank 1 Sensor 1 oxygen sensor. Look for erratic voltage readings or a flat line.
- 4Test the O2 sensor's heater circuit resistance if your scan tool indicates a heater circuit issue (often a related code like P0135).
- 5If visual inspection and live data confirm a faulty sensor, replace the Bank 1 Sensor 1 oxygen sensor.
P0130 on Popular Vehicles
Honda Accord
2003-2012Known for upstream O2 sensor failures due to age and heat cycles. Wiring can also become brittle over time, leading to intermittent signals.
85% fixed by replacing the O2 sensor or repairing wiring
Toyota Camry
2002-2011Age-related O2 sensor failures are common. Sometimes, exhaust manifold gaskets can develop minor leaks that affect sensor readings, triggering this code.
80% fixed by replacing the O2 sensor or repairing exhaust leaks
Ford F-150
2004-2014O2 sensor failures are common, especially on higher mileage trucks. Exhaust leaks are also a more frequent cause due to the exhaust system's exposure and design.
75% fixed by replacing the O2 sensor or repairing exhaust leaks
Frequently Asked Questions
What does P0130 mean?
P0130 indicates your engine's primary oxygen sensor (Bank 1 Sensor 1) isn't sending the correct signal to the computer, preventing accurate fuel mixture adjustments.
Can I drive with P0130?
Yes, you can drive with P0130, but you should fix it within 1-2 weeks. Your fuel economy will suffer, and your vehicle will produce more emissions.
Will P0130 clear itself?
No, P0130 will not clear itself. The underlying issue, usually a faulty sensor or wiring, needs to be repaired before the code will go away.
How do I fix P0130 myself?
Start by inspecting the O2 sensor wiring and connector for damage. Check for exhaust leaks near the sensor. If those are good, replacing the Bank 1 Sensor 1 oxygen sensor is the most common fix.
How much does it cost to fix P0130?
A DIY fix for P0130 typically costs $50-$200 for a new oxygen sensor. Professional repair at a shop will cost $150-$500, including parts and labor.
P0130 keeps coming back - why?
If P0130 returns, it often means the initial diagnosis was incomplete. Double-check for subtle exhaust leaks, wiring damage further up the harness, or ensure you used a quality replacement O2 sensor.
Will P0130 fail emissions/smog test?
Yes, P0130 will cause your vehicle to fail an emissions or smog test. The code indicates a problem with the emissions control system.
What's the difference between P0130 and P0131?
P0130 indicates a general circuit malfunction for Bank 1 Sensor 1, meaning the signal is out of expected range. P0131 specifically means the Bank 1 Sensor 1 voltage is too low, indicating a lean condition or a short in the sensor circuit.
P0130 on Honda Accord - what's common?
On many Honda Accords, P0130 is frequently caused by a failing upstream oxygen sensor (Bank 1 Sensor 1) due to age and heat. Inspecting the wiring harness for brittleness or damage is also important.
Questions to Ask Your Mechanic
Did you check the live data from the Bank 1 Sensor 1 oxygen sensor to see its voltage fluctuations?
Good answer: Yes, the sensor was showing a flat line (or erratic readings) indicating it wasn't switching properly. We also checked the heater circuit.
What did you find when inspecting the wiring harness and connector for the Bank 1 Sensor 1 O2 sensor?
Good answer: We found no visible damage, corrosion, or loose connections. We also performed a continuity test on the wires.
Repair Cost Estimate
DIY Repair
Parts only
$50-$200
Shop Repair
Parts + labor
$150-$500
Save $100-$300 by doing it yourself
Difficulty
intermediate
Time
1-2 hours
Intermediate - requires an OBD-II scan tool to confirm the diagnosis and potentially a special O2 sensor socket for removal.
Cost of Waiting
Ignoring P0130 leads to reduced fuel economy and increased emissions. Over time, an improperly rich or lean fuel mixture can damage your catalytic converter, turning a $50-$200 O2 sensor job into a $800-$2,500 converter replacement.
While You're In There...
If you need to remove exhaust components to access the sensor, replacing old gaskets prevents future leaks and ensures a proper seal.
Applying anti-seize to the threads of the new O2 sensor prevents it from seizing in the exhaust pipe, making future removal easier.
Tools You'll Need
- OBD-II Scan Tool
- Oxygen Sensor Socket
- Wrench Set
- Wire Brush
- Anti-seize Compound
- Multimeter (for advanced diagnostics)
P0130 is a common code related to your vehicle's primary oxygen sensor. Most repairs are straightforward, and replacing the sensor will restore your fuel economy and emissions performance.
- Family-owned since 1957
- 990,000+ happy customers
- Fast nationwide shipping
- Easy returns
Your Next Steps
Step 1: Visually inspect the Bank 1 Sensor 1 O2 sensor and its wiring for any damage or corrosion. Also, check for exhaust leaks near the sensor.
Step 2: If no obvious issues are found, use an OBD-II scan tool to monitor the live data from the O2 sensor. Look for a sensor that is not switching or shows erratic voltage.
Step 3: If live data confirms a faulty sensor, you'll likely need a new Bank 1 Sensor 1 oxygen sensor. Consider an O2 sensor socket for easier removal and installation.