PowertrainP1271

Caution

Severity: Caution - get it checked when you can

Accelerator pedal position sensor 1-2 correlation

23 brands affected · Description from Toyota data.

Key terms: Control module: a small computer that runs one part of the car · 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?

Caution · drive with care

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 23

Brand	Code	Description	System
Ashok Leyland CV	P1271	No description available	Powertrain
Chery	P1271	Pump-Jet Valve: Cylinder 4 (N243): Regulation Range Not Reached Brand	Powertrain
Daewoo	P1271	Air/Fuel Ratio Sensor 1 Brand	Powertrain
Daihatsu	P1271	Fuel pressure regulator system Brand	Powertrain
DFFS	P1271	No description available	Powertrain
DFXK	P1271	Pump-Jet Valve: Cylinder 4 (N243): Regulation Range Not Reached Brand	Powertrain
EOBD	P1271	Gaspedalsensor Brand	Powertrain
Geely	P1271	Pump-Jet Valve: Cylinder 4 (N243): Regulation Range Not Reached Brand	Powertrain
GM	P1271	Air/Fuel Ratio Sensor 1 Brand	Powertrain
Holden	P1271	No description available	Powertrain
Hyundai	P1271	No description available	Powertrain
Isuzu	P1271	No description available	Powertrain
Land Rover	P1271	Cylinder 1 high to low side is open Brand	Powertrain
Mahindra	P1271	A/F SEN1(B1) /P1272 Brand	Powertrain
Mitsubishi	P1271	No description available	Powertrain
Nissan	P1271	Air/Fuel sensor 1 (bank 1) /P1272 Brand	Powertrain
Perodua	P1271	Fuel pressure regulator system Brand	Powertrain
Peugeot	P1271	No description available	Powertrain
Renault	P1271	No description available	Powertrain
Saab	P1271	Air/Fuel Ratio Sensor 1 Brand	Powertrain
Suzuki	P1271	Cylinder4 Injector Circuit High (Injector No.4-2) Brand	Powertrain
Tata	P1271	High Pressure Sensor (On Pressure Regulator) Fault Brand	Powertrain
Toyota	P1271	Accelerator pedal position sensor 1-2 correlation 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 P127xx codes.