Nissan Altima · Diagnostic Trouble Code
P0101 — Mass Airflow Sensor Range/Performance
Quick overview of P0101 on your Nissan Altima. Read the full diagnosis guide, then find the repair guides for your vehicle below.
Repair guides that fix P0101
Nissan Altima
2019-2024 Nissan Altima — MAF Sensor Replacement
Cleaning and replacing the MAF sensor.
Nissan Altima
2019-2024 Nissan Altima - Engine Air Filter Replacement
A restricted air filter can skew the air-fuel mixture.
Nissan Altima
2019-2024 Nissan Altima - Check Engine Light
What that light means and what to check first.
General diagnostic information, not a factory service procedure. If you're unsure, have a qualified technician confirm the diagnosis before buying parts.