Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is noticing that the oxygen sensor in the exhaust system is not reacting quickly enough when the engine changes from using more fuel to using less fuel. It's like when you turn the volume down on a radio and it takes a long time for the sound to actually get quieter.
The oxygen sensor is responsible for measuring the amount of oxygen in the exhaust gases. This information is used by the engine control module to adjust the air-fuel mixture for optimal combustion. A slow response indicates that the sensor is not adjusting quickly enough to changes in the exhaust gas composition.
The P013C code is triggered when the Engine Control Module (ECM) detects that the downstream oxygen sensor (Bank 2 Sensor 2) has a slow response time when transitioning from a rich to a lean condition. This can affect the vehicle's emissions and fuel efficiency.
• Check Engine Light is on
• Decreased fuel efficiency
• Rough engine idle
• Faulty oxygen sensor
• Exhaust leaks
• Wiring issues or poor connections
Oxygen Sensor: A device that measures the amount of oxygen in the exhaust gases.
ECM: Engine Control Module, the computer that controls the engine's functions.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the oxygen sensor.
• Check for exhaust leaks near the sensor.
• Replace the faulty oxygen sensor.
• Repair any exhaust leaks.
• Fix or replace damaged wiring or connectors.
• OBD-II scanner
• Wrench set
• Multimeter
$150 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain the exhaust system.
• Ensure timely replacement of oxygen sensors.
• Check for and repair exhaust leaks promptly.
Sensor Issue
• Address the issue promptly to avoid potential damage to the catalytic converter.
• Monitor fuel efficiency and engine performance regularly.
Oxygen sensors may be covered under the vehicle's emissions warranty.
Oxygen sensor-related codes have been common since the introduction of OBD-II systems, as they are critical for emissions control.
Moderate – While not immediately dangerous, it can lead to increased emissions and reduced fuel efficiency.
Driving with a faulty oxygen sensor can lead to increased emissions, which may not comply with local environmental regulations.
• Engine at operating temperature
• Vehicle at idle
The oxygen sensor is located in the exhaust system, downstream of the catalytic converter on the side of the engine labeled Bank 2.
Q: Can I drive with a P013C code?
A: While you can drive with this code, it's best to address it soon to avoid potential damage to the catalytic converter and to maintain fuel efficiency.
Q: How often should oxygen sensors be replaced?
A: Oxygen sensors typically last between 60,000 to 100,000 miles, but it's best to follow the manufacturer's recommendations.
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Fitment Required · Vehicle-fitment part
Relevant when the code or supporting diagnostics point toward upstream or downstream oxygen-sensor faults.
This code family often involves upstream or downstream oxygen-sensor diagnosis.
Verify exact sensor position and vehicle fitment before buying.
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Fitment Required · Vehicle-fitment part
Relevant when catalyst-efficiency or emissions faults persist after proper diagnosis.
Catalyst-efficiency faults sometimes point toward converter problems after proper testing.
Catalytic converters are highly vehicle-specific and should not be purchased by code alone.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.