PowertrainP2187

Caution

Severity: Caution - get it checked when you can

Fuel system too lean in idle working condition

36 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 36

Brand	Code	Description	System
Ashok Leyland CV	P2187	No description available	Powertrain
BAIC Motor	P2187	System Too Lean at Idle Brand	Powertrain
Mercedes-Benz	P2187	No description available	Powertrain
BYD	P2187	System too lean at idle Brand	Powertrain
Chery	P2187	Idle fuel system too lean Brand	Powertrain
Chrysler	P2187	System too lean at idle Brand	Powertrain
Daewoo	P2187	System Too Lean at Idle Bank 1 Brand	Powertrain
DFFS	P2187	Idle fuel system is too lean Brand	Powertrain
DFFX	P2187	System Too Lean at Idle Bank 1 Brand	Powertrain
DFXK	P2187	idle fuel system Lean Brand	Powertrain
EOBD	P2187	Túl dús üresjárat 1. bank Brand	Powertrain
Geely	P2187	System Too Lean at Idle Bank 1 Brand	Powertrain
GM	P2187	System Too Lean at Idle Bank 1 Brand	Powertrain
Great Wall	P2187	System Too Lean at Idle Brand	Powertrain
Hafei	P2187	System Too Lean at Idle Bank 1 Brand	Powertrain
Holden	P2187	Fuel Trim System Lean at Idle Brand	Powertrain
Honda	P2187	No description available	Powertrain
Hyundai	P2187	No description available	Powertrain
Isuzu	P2187	No description available	Powertrain
Land Rover	P2187	System too lean at idle Bank 1 Brand	Powertrain
Mahindra	P2187	No description available	Powertrain
Maserati	P2187	System too lean at idle (bank 1) Brand	Powertrain
Mitsubishi	P2187	System too lean Brand	Powertrain
Opel	P2187	System Too Lean at Idle Bank 1 Brand	Powertrain
Peugeot	P2187	No description available	Powertrain
Porsche	P2187	No description available	Powertrain
Proton	P2187	System too lean Brand	Powertrain
Saab	P2187	System Too Lean at Idle Bank 1 Brand	Powertrain
MG (SAIC)	P2187	System Too Lean at Idle Bank 1 Brand	Powertrain
Smart	P2187	No description available	Powertrain
Sprinter	P2187	No description available	Powertrain
Suzuki	P2187	System too Lean at Idle Bank 1 Brand	Powertrain
SWM Motor	P2187	The fuel system is too lean at idle speed Brand	Powertrain
Tata	P2187	Lambda Too Lean At Idle Brand	Powertrain
Toyota	P2187	Fuel system too lean in idle working condition Brand	Powertrain
Volkswagen	P2187	Bank 1 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 4

These 7-character codes are manufacturer-specific variants of P2187 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P218700	The mixture (cylinder bank 1) is too lean at idle speed. Brand	Powertrain
SsangYong	P218700	System too lean at idle (additive) (bank 1) Brand	Powertrain
Volvo	P218722	No description available	Powertrain
Mercedes-Benz	P218762	The mixture (cylinder bank 1) is too lean at idle speed. The signal comparison is faulty. Brand	Powertrain

6Related codes

Browse Pxxx codes or P218xx codes.