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 part of the car that measures how much air is going into the engine on one side isn't working right.
The Mass Air Flow (MAF) sensor measures the amount of air entering the engine so the computer can adjust the fuel mixture. Bank 2 refers to the side of the engine with the second cylinder in a V-type engine.
The P1479 code indicates a malfunction in the Mass Air Flow (MAF) sensor on Bank 2 of the engine. This sensor is crucial for determining the air intake volume, which is necessary for calculating the correct fuel injection amount. A defective sensor can lead to improper air-to-fuel ratios, affecting engine performance.
• Check Engine Light is on
• Poor fuel economy
• Rough idling or stalling
• Reduced engine performance
• Faulty Mass Air Flow sensor
• Wiring issues or poor connections in the MAF circuit
• Clogged or dirty air filter
• Vacuum leaks
MAF: Mass Air Flow
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code
• Inspect the MAF sensor and wiring for damage
• Check for vacuum leaks in the intake system
• Test the MAF sensor with a multimeter
• Replace the faulty MAF sensor
• Repair or replace damaged wiring or connectors
• Clean or replace the air filter
• Fix any vacuum leaks
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $400
Moderate
• BMW 3 Series
• Audi A4
• Mercedes-Benz C-Class
• Regularly replace the air filter
• Inspect and clean the MAF sensor periodically
• Ensure all air intake connections are secure
Sensor Issue
• Avoid driving with this issue for extended periods
• Consult a professional mechanic for accurate diagnosis
• Consider regular maintenance checks to prevent sensor issues
Sensor-related repairs may be covered under vehicle emissions warranty.
The P1479 code has been commonly reported in vehicles with high mileage or those that have not had regular air filter maintenance.
Moderate – It is advisable to address this issue soon to prevent further engine performance problems.
Driving with a malfunctioning MAF sensor may lead to increased emissions, which could violate local environmental regulations.
• Engine at operating temperature
• Vehicle in a stationary position
The Mass Air Flow sensor is located in the intake air duct between the air filter and the throttle body.
Q: Can I drive my car with a P1479 code?
A: It's possible to drive, but it's not recommended as it can lead to poor engine performance and increased emissions.
Q: How often should the MAF sensor be checked?
A: The MAF sensor should be inspected during regular maintenance intervals or if you notice performance issues.
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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.