PowertrainP2191

Caution

Severity: Caution - get it checked when you can

System Too Lean at Higher Load (Bank 1)

31 brands affected · Generic SAE J2012 description.

Key terms: Control module: a small computer that runs one part of the car · Bank 1: the side of the engine containing cylinder 1 · 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?

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 31

Brand	Code	Description	System
Ashok Leyland CV	P2191	System Too Lean at Higher Load (Bank 1) SAE	Powertrain
BAIC Motor	P2191	System Too Lean at Higher Load Bank 1 Brand	Powertrain
Mercedes-Benz	P2191	System Too Lean at Higher Load (Bank 1) SAE	Powertrain
BYD	P2191	System too lean at high load B1 Brand	Powertrain
Chery	P2191	System too lean at high load B1 Brand	Powertrain
Daewoo	P2191	System Too Lean at High Load Brand	Powertrain
DFFS	P2191	System Too Lean at Higher Load Bank 1 Brand	Powertrain
DFFX	P2191	System too lean at high load B1 Brand	Powertrain
DFXK	P2191	System Too Lean at Higher Load Bank 1 Brand	Powertrain
EOBD	P2191	System too lean at higher load bank 1 Brand	Powertrain
Geely	P2191	System too lean at high load B1 Brand	Powertrain
GM	P2191	System Too Lean at Higher Load Bank 1 Brand	Powertrain
Great Wall	P2191	System too lean at high load B1 Brand	Powertrain
Hafei	P2191	System too lean at high load B1 Brand	Powertrain
Holden	P2191	Fuel Trim System Lean at High Load Brand	Powertrain
Honda	P2191	System Too Lean at Higher Load (Bank 1) SAE	Powertrain
Hyundai	P2191	System Too Lean at Higher Load (Bank 1) SAE	Powertrain
Isuzu	P2191	System Too Lean at Higher Load (Bank 1) SAE	Powertrain
Land Rover	P2191	System too lean at higher load Bank 1 Brand	Powertrain
Mahindra	P2191	System Too Lean at Higher Load (Bank 1) SAE	Powertrain
Maserati	P2191	System Too Lean at Higher Load (Bank 1) SAE	Powertrain
Mitsubishi	P2191	System too lean at high load 1 Brand	Powertrain
Opel	P2191	System Too Lean at Higher Load Bank 1 Brand	Powertrain
Peugeot	P2191	System Too Lean at Higher Load (Bank 1) SAE	Powertrain
Porsche	P2191	Lambdaregeladaption oberer Lastbereich Bank 1 - max Brand	Powertrain
Proton	P2191	System too lean at high load 1 Brand	Powertrain
Saab	P2191	System Too Lean at Higher Load Bank 1 Brand	Powertrain
MG (SAIC)	P2191	System Too Lean at Higher Load Bank 1 Brand	Powertrain
Sprinter	P2191	System Too Lean at Higher Load (Bank 1) SAE	Powertrain
Tata	P2191	System Too Lean At Higher Load Bank 1 Brand	Powertrain
Toyota	P2191	Mixture adjustment adaptive memory data failure - undifferentiated 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 1

These 7-character codes are manufacturer-specific variants of P2191 and may be reported by some scan tools.

Brand	Code	Description	System
SsangYong	P219100	System too lean at higher load (multiple) (bank 1) Brand	Powertrain

6Related codes

Browse Pxxx codes or P219xx codes.