PowertrainP1151
CautionSeverity: Caution - get it checked when you can
Lack of HO2S Switch - Sensor Indicates Lean (Bank 2 Sensor 1)
Key terms: Control module: a small computer that runs one part of the car · Bank 2: the side of the engine containing cylinder 2 · SAE J2012: the standard generic code list · 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 28
| Brand | Code | Description | System |
|---|---|---|---|
| BMW | P1151 | Open circuit Brand | Powertrain |
| BYD | P1151 | NO. 338 battery voltage sampling wire loop fault Brand | Powertrain |
| Chery | P1151 | Long Term Fuel Trim Additive Air Bank 1: Range 1: System too Lean Brand | Powertrain |
| Daewoo | P1151 | Lack Of HO2S21 Switch - Sens Indicates Lean Brand | Powertrain |
| Daihatsu | P1151 | A/F sensor B2S1 Brand | Powertrain |
| DFXK | P1151 | Long Term Fuel Trim Additive Air Bank 1: Range 1: System too Lean Brand | Powertrain |
| EOBD | P1151 | Elektronski gas Brand | Powertrain |
| Ford | P1151 | DTC(Diagnostic Trouble Codes)(P1131 and P1130) or Brand | Powertrain |
| Geely | P1151 | Long Term Fuel Trim Additive Air Bank 1: Range 1: System too Lean Brand | Powertrain |
| GM | P1151 | Lack Of HO2S21 Switch - Sens Indicates Lean Brand | Powertrain |
| Holden | P1151 | Lack of HO2S Switch - Sensor Indicates Lean (Bank 2 Sensor 1) SAE | Powertrain |
| Hyundai | P1151 | Lack of HO2S Switch - Sensor Indicates Lean (Bank 2 Sensor 1) SAE | Powertrain |
| Isuzu | P1151 | Lack of HO2S Switch - Sensor Indicates Lean (Bank 2 Sensor 1) SAE | Powertrain |
| Land Rover | P1151 | Lack of HO2S Switch - Sensor Indicates Lean (Bank 2 Sensor 1) SAE | Powertrain |
| Mahindra | P1151 | Lack of HO2S Switch - Sensor Indicates Lean (Bank 2 Sensor 1) SAE | Powertrain |
| Maserati | P1151 | Lack of HO2S Switch - Sensor Indicates Lean (Bank 2 Sensor 1) SAE | Powertrain |
| Mazda | P1151 | DTC(Diagnostic Trouble Codes)(P1131 and P1130) or Brand | Powertrain |
| Mitsubishi | P1151 | Module3(Cell3) harness Open Brand | Powertrain |
| Opel | P1151 | Lack Of HO2S21 Switch - Sens Indicates Lean Brand | Powertrain |
| Perodua | P1151 | A/F sensor B2S1 Brand | Powertrain |
| Peugeot | P1151 | Lack of HO2S Switch - Sensor Indicates Lean (Bank 2 Sensor 1) SAE | Powertrain |
| Porsche | P1151 | Lack of HO2S Switch - Sensor Indicates Lean (Bank 2 Sensor 1) SAE | Powertrain |
| Proton | P1151 | Module3(Cell3) harness Open Brand | Powertrain |
| Saab | P1151 | Lack Of HO2S21 Switch - Sens Indicates Lean Brand | Powertrain |
| Subaru | P1151 | Lack of HO2S Switch - Sensor Indicates Lean (Bank 2 Sensor 1) SAE | Powertrain |
| Suzuki | P1151 | O2 sensor (Bank 2 Sensor-1) circuit continuity Brand | Powertrain |
| Toyota | P1151 | Bank 1, long term fuel trim, range 1 leanness lower limit exceeded Brand | Powertrain |
| Volkswagen | P1151 | Long Term Fuel Trim Additive Air 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 18
These 7-character codes are manufacturer-specific variants of P1151 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Peugeot | P115100 | No description available | Powertrain |
| Peugeot | P115101 | No description available | Powertrain |
| Peugeot | P115105 | No description available | Powertrain |
| Peugeot | P115121 | No description available | Powertrain |
| Peugeot | P115122 | No description available | Powertrain |
| Peugeot | P115123 | No description available | Powertrain |
| Peugeot | P115124 | No description available | Powertrain |
| Peugeot | P115126 | No description available | Powertrain |
| SsangYong | P115144 | Vehicle Control Unit (VCU) memory writing failure Brand | Powertrain |
| Peugeot | P115146 | No description available | Powertrain |
| Peugeot | P115147 | No description available | Powertrain |
| Peugeot | P115179 | No description available | Powertrain |
| Peugeot | P115180 | No description available | Powertrain |
| Peugeot | P115181 | No description available | Powertrain |
| Peugeot | P115182 | No description available | Powertrain |
| Peugeot | P115185 | No description available | Powertrain |
| Peugeot | P115186 | No description available | Powertrain |
| Peugeot | P115187 | No description available | Powertrain |
6Related codes
Browse Pxxx codes or P115xx codes.