Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer thinks too much air is going into the engine on one side, which can make the car run funny.
This code indicates that the mass air flow (MAF) sensor is reporting more air entering the engine than expected under full load conditions for Bank 2.
The P1264 code is triggered when the powertrain control module (PCM) detects an abnormally high air flow reading from the mass air flow sensor on Bank 2 of the engine. This could be due to a faulty sensor, air leaks, or issues with the engine's air intake system.
• Check Engine Light is on
• Poor engine performance
• Increased fuel consumption
• Faulty mass air flow sensor
• Air intake leaks
• Clogged air filter
Mass Air Flow Sensor: A device that measures the amount of air entering the engine.
Bank 2: The side of the engine that does not contain cylinder 1 in a V-type engine.
• Scan the vehicle for additional codes.
• Inspect the air intake system for leaks.
• Test the mass air flow sensor voltage and signal.
• Replace the mass air flow sensor if faulty.
• Repair any air intake leaks.
• Replace the air filter if clogged.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly replace air filters.
• Check for air intake leaks periodically.
• Ensure proper maintenance of the mass air flow sensor.
Engine Performance
• Avoid driving the vehicle hard until the issue is resolved.
• Have the vehicle inspected by a professional mechanic.
Check with your vehicle manufacturer for specific warranty coverage related to emissions and engine components.
This code has been associated with vehicles experiencing air intake issues, often due to sensor failures or air leaks.
Moderate – It should be addressed soon to avoid potential engine damage.
Driving with this code may lead to increased emissions and potential engine damage. Address the issue promptly.
• Vehicle at full load conditions
• Engine at operating temperature
The mass air flow sensor is typically located between the air filter and the throttle body on the air intake system.
Q: Can I drive with a P1264 code?
A: It's not recommended to drive for extended periods with this code active, as it may lead to engine performance issues.
Q: How do I know if my MAF sensor is bad?
A: Symptoms of a bad MAF sensor include rough idling, poor acceleration, and the Check Engine Light being on.
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Fitment Required · Vehicle-fitment part
Relevant for airflow, fuel-trim, and intake-metering faults after confirming the sensor is actually at fault.
Airflow and fuel-trim codes can involve the mass air flow sensor after proper diagnosis.
Verify the sensor design and fitment for your exact vehicle.
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.