PowertrainP02CB
CautionSeverity: Caution - get it checked when you can
Turbocharger/supercharger 'B' underboost condition
Key terms: Turbocharger: an exhaust-driven fan that pushes extra air into the engine · Supercharger: an engine-driven fan that pushes extra air into the engine · Boost pressure: extra air pressure made by a turbo or supercharger · 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 powertrain range that covers fuel and air metering, over-temperature, overspeed and transmission over-temperature conditions.
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?
Do not assume this code is safe to ignore: some codes in this range affect engine safety systems. Have it diagnosed; if the engine is overheating, a red warning light is on, or the engine loses power or cuts out, 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 25
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P02CB | No description available | Powertrain |
| BAIC Motor | P02CB | Turbocharger/Supercharger 'B' Underboost Condition Brand | Powertrain |
| BYD | P02CB | Turbocharger/Supercharger 'B' Underboost Condition Brand | Powertrain |
| Chery | P02CB | Turbocharger/Supercharger 'B' Underboost Condition Brand | Powertrain |
| Daewoo | P02CB | No description available | Powertrain |
| DFFS | P02CB | Turbocharger/Supercharger 'B' Underboost Condition Brand | Powertrain |
| DFFX | P02CB | Turbocharger/Supercharger 'B' Underboost Condition Brand | Powertrain |
| DFXK | P02CB | Turbocharger/Supercharger 'B' Underboost Condition Brand | Powertrain |
| EOBD | P02CB | Turboahdin/yliähdin 'B' alipainehäiriö Brand | Powertrain |
| Ford | P02CB | No description available | Powertrain |
| Geely | P02CB | Turbocharger/Supercharger 'B' Underboost Condition Brand | Powertrain |
| GM | P02CB | Turbocharger/Supercharger 'B' Underboost Condition Brand | Powertrain |
| Great Wall | P02CB | Turbocharger/Supercharger 'B' Underboost Condition Brand | Powertrain |
| Hafei | P02CB | Turbocharger/Supercharger 'B' Underboost Condition Brand | Powertrain |
| Holden | P02CB | No description available | Powertrain |
| Honda | P02CB | No description available | Powertrain |
| Hyundai | P02CB | No description available | Powertrain |
| Isuzu | P02CB | No description available | Powertrain |
| Land Rover | P02CB | Turbocharger/supercharger B underboost condition Brand | Powertrain |
| Opel | P02CB | Turbocharger/Supercharger 'B' Underboost Condition Brand | Powertrain |
| Peugeot | P02CB | No description available | Powertrain |
| Saab | P02CB | Turbocharger/Supercharger 'B' Underboost Condition Brand | Powertrain |
| MG (SAIC) | P02CB | Turbocharger/Supercharger 'B' Underboost Condition Brand | Powertrain |
| Toyota | P02CB | Turbocharger/supercharger 'B' underboost condition Brand | Powertrain |
| Volkswagen | P02CB | Turbo / supercharger B: pressure too low; Short to ground 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
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