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P0101 — MAF Sensor Range/Performance Problem

Medium Severity  ·  Sensors

OBD-II code P0101 means your vehicle's ECU detected: MAF Sensor Range/Performance Problem. Below: causes, step-by-step fixes, and repair cost — free, no signup needed.

Drivable short-term but schedule a diagnosis soon. Prolonged driving can worsen the issue.
Typical Repair Cost
$100–$400
Parts + labor, national average
Severity
Medium
Schedule repair soon
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Common Causes of P0101

  • Dirty MAF
  • Clogged air filter
  • Air intake leak
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How to Fix Code P0101

1
Replace air filter ($15–$30)
2
Clean MAF sensor
3
Inspect air intake for cracks

FAQ — Code P0101

What does OBD-II code P0101 mean?
P0101 means your vehicle's onboard computer detected: MAF Sensor Range/Performance Problem. This is a medium-severity code in the Sensors category.
How much does it cost to fix code P0101?
Typical repair cost for P0101 is $100–$400 including parts and labor. Costs vary by vehicle make, model, and location. A free scan at AutoZone or O'Reilly is a good first step.
Can I drive my car with code P0101?
Code P0101 is generally safe for short trips, but have it diagnosed soon to prevent the problem from worsening.
What are the most common causes of P0101?
The most common causes are: Dirty MAF, Clogged air filter, Air intake leak. Always start with the cheapest diagnosis step before replacing parts.
Will code P0101 clear itself?
Code P0101 will clear itself after the underlying issue is fixed and the ECU completes several successful drive cycles. Clearing it without fixing the root cause only masks the problem temporarily.

Is P0101 showing on your car?

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OBD-II code data is based on SAE J2012 standards and general repair industry data. Repair costs are national averages and vary by vehicle, location, and shop. Always consult a qualified mechanic for a diagnosis specific to your vehicle.