Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the car's oxygen sensor, which helps the engine use the right amount of fuel. It's like when your computer's mouse isn't working right.
The P2244 code indicates that the reference voltage for the oxygen sensor in Bank 1, Sensor 1 is not performing as expected.
The P2244 code is triggered when the powertrain control module (PCM) detects an issue with the reference voltage signal of the oxygen sensor located on Bank 1, Sensor 1. This sensor is responsible for measuring the amount of oxygen in the exhaust gases and sending this information to the PCM to adjust the air-fuel mixture.
• Check Engine Light is on
• Poor fuel economy
• Rough engine idle
• Faulty oxygen sensor
• Wiring issues or poor connections
• Malfunctioning PCM
PCM: Powertrain Control Module - the car's computer that controls the engine and transmission.
Oxygen Sensor: A device that measures the amount of oxygen in the exhaust gases.
• Scan the vehicle for other trouble codes
• Inspect the oxygen sensor and its wiring for damage
• Test the reference voltage at the sensor connector
• Replace the faulty oxygen sensor
• Repair or replace damaged wiring or connectors
• Reprogram or replace the PCM if necessary
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $300
Moderate
• Toyota Camry
• Honda Accord
• Ford F-150
• Regular maintenance checks
• Ensure proper electrical connections
• Use quality fuel
Sensor Issue
• Get the vehicle checked by a professional mechanic
• Avoid driving extensively until the issue is resolved
Oxygen sensors may be covered under the vehicle's emissions warranty.
The P2244 code has been associated with vehicles experiencing sensor failures due to aging or contamination.
Moderate – Driving with this issue can lead to increased fuel consumption and emissions.
Ignoring this code can lead to failing emissions tests and potential fines.
• Engine running at operating temperature
• Stable idle conditions
The oxygen sensor is located in the exhaust manifold of Bank 1, typically on the side of the engine with cylinder 1.
Q: Can I drive with a P2244 code?
A: It's possible, but it's not recommended as it can lead to poor fuel economy and increased emissions.
Q: How often should I replace my oxygen sensor?
A: Oxygen sensors typically last between 60,000 to 90,000 miles, but check your vehicle's manual for specific recommendations.
High-End · Full-system diagnostics
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Network faults often require full-system access instead of a generic code reader alone.
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Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
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Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.
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.
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.