PowertrainP00B9
CautionSeverity: Caution - get it checked when you can
Low pressure fuel system pressure - too low, low ambient temperature
Key terms: Oxygen sensor: measures oxygen in the exhaust gas · Mass air flow sensor: measures the air going into the engine · Powertrain: engine, transmission and emissions
1What it means in plain English
This code is in the fuel and air metering range, which includes fuel-pressure and camshaft-timing faults.
2Common causes
- Dirty or faulty mass air flow sensor
- Vacuum or intake air leak
- Weak fuel pump or clogged fuel filter
- Faulty fuel injector
- Faulty oxygen sensor
- Wiring or connector fault
3Can I drive?
Have it diagnosed promptly. Some codes in this range affect fuel pressure or camshaft timing; if the engine loses power, runs badly, or stalls, stop safely and get professional help.
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 21
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P00B9 | No description available | Powertrain |
| BAIC Motor | P00B9 | Low Pressure Fuel System Pressure - Too Low, Low Ambientr Temperature Bank 2 Brand | Powertrain |
| BYD | P00B9 | Low Pressure Fuel System Pressure - Too Low, Low Ambientr Temperature Bank 2 Brand | Powertrain |
| Chery | P00B9 | Low Pressure Fuel System Pressure - Too Low, Low Ambientr Temperature Bank 2 Brand | Powertrain |
| DFFS | P00B9 | Low Pressure Fuel System Pressure - Too Low, Low Ambientr Temperature Bank 2 Brand | Powertrain |
| DFFX | P00B9 | Low Pressure Fuel System Pressure - Too Low, Low Ambientr Temperature Bank 2 Brand | Powertrain |
| DFXK | P00B9 | Low Pressure Fuel System Pressure - Too Low, Low Ambientr Temperature Bank 2 Brand | Powertrain |
| EOBD | P00B9 | Lavtrykk drivstoffsystemtrykk - for lavt, lav omgivelsestemperatur Brand | Powertrain |
| Geely | P00B9 | Low Pressure Fuel System Pressure - Too Low, Low Ambientr Temperature Bank 2 Brand | Powertrain |
| GM | P00B9 | Low Pressure Fuel System Pressure - Too Low, Low Ambientr Temperature Bank 2 Brand | Powertrain |
| Great Wall | P00B9 | Low Pressure Fuel System Pressure - Too Low, Low Ambientr Temperature Bank 2 Brand | Powertrain |
| Hafei | P00B9 | Low Pressure Fuel System Pressure - Too Low, Low Ambientr Temperature Bank 2 Brand | Powertrain |
| Honda | P00B9 | No description available | Powertrain |
| Hyundai | P00B9 | No description available | Powertrain |
| Isuzu | P00B9 | No description available | Powertrain |
| Land Rover | P00B9 | Low Pressure Fuel System Pressure - Too Low_ Low Ambient Temperature Brand | Powertrain |
| Peugeot | P00B9 | No description available | Powertrain |
| Proton | P00B9 | No description available | Powertrain |
| Saab | P00B9 | Low Pressure Fuel System Pressure - Too Low, Low Ambientr Temperature Bank 2 Brand | Powertrain |
| MG (SAIC) | P00B9 | Low Pressure Fuel System Pressure - Too Low, Low Ambientr Temperature Bank 2 Brand | Powertrain |
| Toyota | P00B9 | Low pressure fuel system pressure - too low, low ambient temperature 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.
5Related codes
Browse Pxxx codes or P00Bxx codes.