PowertrainP1171
CautionSeverity: Caution - get it checked when you can
Fuel System Lean During Acceleration
Key terms: Control module: a small computer that runs one part of the car · 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 31
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P1171 | Fuel System Lean During Acceleration SAE | Powertrain |
| BAIC Motor | P1171 | Front O2 Sensor Lean PE Brand | Powertrain |
| BMW | P1171 | Value in boot range implausible Brand | Powertrain |
| BYD | P1171 | Front O2 sensor lean PE Brand | Powertrain |
| Chery | P1171 | Front oxygen sensor Lean PE Brand | Powertrain |
| Daewoo | P1171 | Rotor Sens Brand | Powertrain |
| DFFS | P1171 | Upstream oxygen too lean while acceleration Brand | Powertrain |
| DFFX | P1171 | The upstream oxygen is too thin when accelerating and enriching it Brand | Powertrain |
| DFXK | P1171 | O2_11_PE lean Brand | Powertrain |
| EOBD | P1171 | ECU rikke Brand | Powertrain |
| Geely | P1171 | Front O2 Sensor System Lean-PE Brand | Powertrain |
| GM | P1171 | Fuel System Lean During Acceleration SAE | Powertrain |
| Great Wall | P1171 | Front oxygen too lean while acceleration Brand | Powertrain |
| Hafei | P1171 | Q adjust resistor Brand | Powertrain |
| Holden | P1171 | Fuel Trim System Lean Brand | Powertrain |
| Honda | P1171 | Fuel System Lean During Acceleration SAE | Powertrain |
| Hyundai | P1171 | Fuel System Lean During Acceleration SAE | Powertrain |
| Isuzu | P1171 | Fuel System Lean During Acceleration SAE | Powertrain |
| Land Rover | P1171 | Banks 1 and 2 System Too Lean Brand | Powertrain |
| Mahindra | P1171 | Fuel System Lean During Acceleration SAE | Powertrain |
| Maserati | P1171 | Fuel System Lean During Acceleration SAE | Powertrain |
| Mitsubishi | P1171 | Q adjust resistor Brand | Powertrain |
| Nissan | P1171 | Fuel System Lean During Acceleration SAE | Powertrain |
| Opel | P1171 | Rotor Sens Brand | Powertrain |
| Peugeot | P1171 | Fuel System Lean During Acceleration SAE | Powertrain |
| Proton | P1171 | Q adjust resistor Brand | Powertrain |
| Saab | P1171 | Rotor Sens Brand | Powertrain |
| Suzuki | P1171 | ECU Function (Intern Fault) Brand | Powertrain |
| SWM Motor | P1171 | Front oxygen too lean while acceleration Brand | Powertrain |
| Tata | P1171 | System Too Lean Brand | Powertrain |
| Volkswagen | P1171 | Angle Sensor 2 for Throttle Actuator (G188) Implausible Signal 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 19
These 7-character codes are manufacturer-specific variants of P1171 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P117100 | Defekfehlercode für Nebenschlusserkennung der Lambdasonde Brand | Powertrain |
| Sprinter | P117100 | Defekfehlercode für Nebenschlusserkennung der Lambdasonde Brand | Powertrain |
| SsangYong | P117100 | 1 injector MDP malfunction Brand | Powertrain |
| Peugeot | P117107 | No description available | Powertrain |
| SsangYong | P11711C | Charging door open Brand | Powertrain |
| Peugeot | P117130 | No description available | Powertrain |
| Peugeot | P117143 | No description available | Powertrain |
| Peugeot | P117144 | No description available | Powertrain |
| Peugeot | P117145 | No description available | Powertrain |
| Peugeot | P117154 | No description available | Powertrain |
| Peugeot | P117156 | No description available | Powertrain |
| Peugeot | P117157 | No description available | Powertrain |
| Peugeot | P117158 | No description available | Powertrain |
| Peugeot | P117159 | No description available | Powertrain |
| Peugeot | P117184 | No description available | Powertrain |
| Peugeot | P117185 | No description available | Powertrain |
| Peugeot | P117186 | No description available | Powertrain |
| Peugeot | P117187 | No description available | Powertrain |
| Peugeot | P117188 | No description available | Powertrain |
6Related codes
Browse Pxxx codes or P117xx codes.