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 has detected a problem with the oxygen sensor on one side of the engine. The sensor is not sending the right signals, which can affect how the engine runs.
The P2241 code indicates that the oxygen sensor's positive current control circuit is reading lower than expected voltage for the sensor located on Bank 2, Sensor 1.
Oxygen sensors measure the amount of oxygen in the exhaust gases and send this information to the engine control module (ECM). The ECM uses this data to adjust the air-fuel mixture for optimal performance and emissions. The P2241 code is triggered when the ECM detects a low voltage in the positive current control circuit of the oxygen sensor on Bank 2, Sensor 1.
• Check Engine Light is on
• Poor fuel economy
• Rough engine idle
• Faulty oxygen sensor
• Wiring issues or poor connections in the sensor circuit
• Faulty ECM
ECM: Engine Control Module
Oxygen Sensor: A device that measures the oxygen level in the exhaust gases
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the oxygen sensor with a multimeter.
• Replace the faulty oxygen sensor.
• Repair or replace damaged wiring or connectors.
• Replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $400
Moderate
• Toyota Camry
• Honda Accord
• Ford F-150
• Regularly inspect and maintain oxygen sensors.
• Ensure connectors are clean and secure.
• Use high-quality fuel to prevent sensor contamination.
Sensor Issue
• Have the vehicle inspected by a professional if the Check Engine Light is on.
• Avoid driving with a known sensor issue to prevent further damage.
Oxygen sensors may be covered under the vehicle's emissions warranty.
Oxygen sensor issues have been a common problem in vehicles, often due to sensor wear or contamination over time.
Moderate – It should be addressed soon to avoid potential engine performance issues.
Driving with a faulty oxygen sensor can lead to increased emissions, which may be illegal in some areas.
• Engine at operating temperature
• Vehicle in closed-loop operation
The oxygen sensor is located on the exhaust manifold of Bank 2, before the catalytic converter.
Q: Can I drive with a P2241 code?
A: It's not recommended to drive for long periods with this code, as it can affect engine performance and emissions.
Q: How do I know if my oxygen sensor is bad?
A: Common signs include a Check Engine Light, poor fuel economy, and rough idling.
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Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
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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.