PowertrainP1148
CautionSeverity: Caution - get it checked when you can
Oxygen control (bank 2) system too rich
Key terms: Control module: a small computer that runs one part of the car · Bank 2: the side of the engine containing cylinder 2 · Powertrain: engine, transmission and emissions
1What it means in plain English
The engine or powertrain control system has stored a fault that does not have specific guidance in this database yet.
2Common causes
- Sensor or actuator fault
- Wiring or connector fault
- Vacuum or intake leak
- Fuel or ignition problem
- Control module fault
3Can I drive?
Have it diagnosed promptly. If the car runs and drives normally, drive gently to a workshop. If it runs badly, stalls, overheats, loses oil pressure, or a warning light is flashing or red, stop safely and get professional help. If the code concerns the brakes, brake vacuum or brake assist, do not drive until it is checked: a hard pedal or longer stopping distance means stop.
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 24
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P1148 | No description available | Powertrain |
| BYD | P1148 | NO. 329 battery voltage sampling wire loop fault Brand | Powertrain |
| Chery | P1148 | Oxygen (Lambda) Sensor Control Bank 2: System too Rich Brand | Powertrain |
| Daewoo | P1148 | Closed Loop,Bank 1 Brand | Powertrain |
| DFFS | P1148 | CLOSED LOOP Brand | Powertrain |
| DFXK | P1148 | Oxygen (Lambda) Sensor Control Bank 2: System too Rich Brand | Powertrain |
| EOBD | P1148 | No description available | Powertrain |
| Ford | P1148 | No description available | Powertrain |
| Geely | P1148 | Oxygen (Lambda) Sensor Control Bank 2: System too Rich Brand | Powertrain |
| GM | P1148 | Closed Loop,Bank 1 Brand | Powertrain |
| Holden | P1148 | HO2S Circuit Closed Loop Performance Sensor 1 Brand | Powertrain |
| Honda | P1148 | No description available | Powertrain |
| Land Rover | P1148 | Generator 2 control circuit Brand | Powertrain |
| Mahindra | P1148 | No description available | Powertrain |
| Mazda | P1148 | No description available | Powertrain |
| Mitsubishi | P1148 | No description available | Powertrain |
| Nissan | P1148 | Closed loop Brand | Powertrain |
| Opel | P1148 | Closed Loop,Bank 1 Brand | Powertrain |
| Peugeot | P1148 | No description available | Powertrain |
| Porsche | P1148 | No description available | Powertrain |
| Proton | P1148 | No description available | Powertrain |
| Saab | P1148 | Closed Loop,Bank 1 Brand | Powertrain |
| Suzuki | P1148 | CLOSED LOOP-B1 Brand | Powertrain |
| Toyota | P1148 | Oxygen control (bank 2) system too rich 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 5
These 7-character codes are manufacturer-specific variants of P1148 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| SsangYong | P114800 | Accelerometer (knock sensor) learning fault Brand | Powertrain |
| Peugeot | P114806 | No description available | Powertrain |
| Peugeot | P114807 | No description available | Powertrain |
| Peugeot | P114808 | No description available | Powertrain |
| SsangYong | P114862 | Immobilizer signal mismatch (wrong key) Brand | Powertrain |
6Related codes
Browse Pxxx codes or P114xx codes.