P0101 on Nissan Altima
Mass or Volume Air Flow Sensor A Circuit Range/Performance
Methodology: Reviewed against the SAE J2012 generic DTC definition and NHTSA owner-complaint patterns, then scoped to Nissan Altima context without treating complaints as confirmed diagnoses.
Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).
- SAE J2012 Diagnostic Trouble Code Definitions — Generic diagnostic trouble code definition reference for P0101.
- NHTSA recalls, complaints, and manufacturer communications — Used to check public owner complaint context, recall status, and safety-related manufacturer communications by VIN or vehicle.
Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.
What P0101 Means on Your Nissan Altima
P0101 is a diagnostic trouble code indicating: Mass or Volume Air Flow Sensor A Circuit Range/Performance. This code relates to the fuel and air metering system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.
Real Nissan Altima Owner Reports
Source: NHTSA Complaints Database
"What component or system failed or malfunctioned, and is it available for inspection upon request? The Engine Control Module (ECM) is malfunctioning, triggering persistent P0101 codes related to the Mass Air Flow (MAF) sensor."
"I get the p0101 code that indicates a mass air flow issue. while driving the car cuts off, stalls, sputters. often the car can be restarted, but it contines to stutter, or shut off. the issue has occurred while driving on nyc streets and on highways, usually while driving on straight roads."
"I have replaced the mass air flow sensor and the code keeps coming on. it only stayed off for a month. it causes the car to idle rough. i am not sure if the other problems that are happening are related but the only light that comes on is the service engine light and the code shows p0101."
"P0101 powertrain/maf circuit issue keeps coming back with car. even a technical service bulletin has been issued by the manufacturer for this issue. dealer reprogrammed ecu/updated & <maf sensor ."
"My engine service light is on and I have scanned with diagnostics. The code P0101, C119A, and C1155 with the most likely solution is to reprogram the power train control module(PCM)."
All reports filed by vehicle owners directly with the U.S. Department of Transportation.
📊 Complaint Trend by Model Year
Common Causes on Nissan Altima
Based on NHTSA complaint component analysis for this vehicle.
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. If your vehicle is covered, repairs are free.
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2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50–$150) pinpoints the root cause before you spend money on parts.
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3
Compare repair quotes
Get 2–3 quotes. Dealer vs. independent shop prices often differ 30–50% for the same repair.