PowertrainP0100
CautionSeverity: Caution - get it checked when you can
Mass or Volume Air Flow Circuit
Key terms: Mass air flow sensor: measures the air going into the engine · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions
1What it means in plain English
The mass air flow sensor, which measures how much air enters the engine, is giving a signal the computer cannot trust.
2Common causes
- Dirty or contaminated mass air flow sensor
- Air leak between the sensor and the engine
- Damaged wiring or connector
- Clogged air filter
- Faulty mass air flow sensor
3Can I drive?
Usually safe to drive gently. Fuel economy and acceleration may suffer. Have it checked before an emissions test.
This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.
4Brand data 43
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P0100 | Lambda/O2 Sensor. Bank 1. Sensor 1. Mixture Switching Time From Poor To Rich. Slow Reaction Brand | Powertrain |
| BAIC Motor | P0100 | Mass or Volume Air Flow A Circuit Brand | Powertrain |
| Mercedes-Benz | P0100 | Mass or Volume Air Flow Circuit SAE | Powertrain |
| BMW | P0100 | Mass or Volume Air Flow Circuit Brand | Powertrain |
| BYD | P0100 | Airflow sensor Brand | Powertrain |
| Chery | P0100 | Airflow sensor Brand | Powertrain |
| Chrysler | P0100 | Mass Air Flow Brand | Powertrain |
| Daewoo | P0100 | MAF sensor signal too low Brand | Powertrain |
| Daihatsu | P0100 | Mass flow sensor open circuit Brand | Powertrain |
| DFFS | P0100 | Air flow sensor fault Brand | Powertrain |
| DFFX | P0100 | Airflow sensor Brand | Powertrain |
| DFXK | P0100 | Mass or Volume Air Flow A Circuit Brand | Powertrain |
| EOBD | P0100 | Circuit senzor debit sau volum aer 'A' Brand | Powertrain |
| Fiat | P0100 | Lost communication with ECM/PCM Brand | Powertrain |
| Ford | P0100 | MAF sensor Brand | Powertrain |
| Geely | P0100 | Airflow sensor Brand | Powertrain |
| GM | P0100 | Mass air flow(mfa) sensor circuit Brand | Powertrain |
| Great Wall | P0100 | Airflow sensor Brand | Powertrain |
| Hafei | P0100 | Airflow sensor Brand | Powertrain |
| Holden | P0100 | Mass Air Flow (MAF) Sensor Circuit Brand | Powertrain |
| Honda | P0100 | Mass or Volume Air Flow Circuit SAE | Powertrain |
| Hyundai | P0100 | Mass or Volume Air Flow Circuit SAE | Powertrain |
| Isuzu | P0100 | Mass or Volume Air Flow Circuit SAE | Powertrain |
| Land Rover | P0100 | mass or volume air flow circuit malfunction Brand | Powertrain |
| Mahindra | P0100 | Mass or Volume Air Flow Circuit SAE | Powertrain |
| Maserati | P0100 | Lost Communication With ECM/PCM Brand | Powertrain |
| Mazda | P0100 | MAF sensor Brand | Powertrain |
| Mitsubishi | P0100 | AFS()/MAP sensor Brand | Powertrain |
| Nissan | P0100 | Mass Air Flow (MAF) sensor Brand | Powertrain |
| Opel | P0100 | Mass air flow(mfa) sensor circuit Brand | Powertrain |
| Perodua | P0100 | Mass flow sensor open circuit Brand | Powertrain |
| Peugeot | P0100 | Mass or Volume Air Flow Circuit SAE | Powertrain |
| Porsche | P0100 | Mass or Volume Air Flow Circuit SAE | Powertrain |
| Proton | P0100 | Airflow sensor Brand | Powertrain |
| Saab | P0100 | Mass Air Flow(MFA) Sensor Circuit Brand | Powertrain |
| MG (SAIC) | P0100 | Mass or Volume Air Flow A Circuit Brand | Powertrain |
| Smart | P0100 | Mass or Volume Air Flow Circuit SAE | Powertrain |
| Sprinter | P0100 | ENV_ _Datum2 Brand | Powertrain |
| Subaru | P0100 | Mass or Volume Air Flow Circuit SAE | Powertrain |
| Suzuki | P0100 | Mass or Volume Air Flow 'A' Circuit Brand | Powertrain |
| Tata | P0100 | AMF Sensor VEXT Fault Brand | Powertrain |
| Toyota | P0100 | Air flow sensor fault Brand | Powertrain |
| Volkswagen | P0100 | Mass air flow sensor (G70): supply voltage Brand | Powertrain |
Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.
5Extended variant codes 6
These 7-character codes are manufacturer-specific variants of P0100 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| SsangYong | P010000 | Intake flow sensor (hot film air mass meter) heating circuit open Brand | Powertrain |
| Mercedes-Benz | P010004 | Der Luftmassenmesser 1 hat einen elektrischen Fehler. Es liegt ein interner Fehler vor. Brand | Powertrain |
| SsangYong | P010084 | Intake flow sensor (hot film air mass meter) electrical error Brand | Powertrain |
| Mercedes-Benz | P010087 | No description available | Powertrain |
| Smart | P010087 | No description available | Powertrain |
| SsangYong | P010088 | Intake flow sensor (hot film air mass meter) signal error Brand | Powertrain |
6Related codes
Browse Pxxx codes or P010xx codes.