PowertrainP2097

Caution

Severity: Caution - get it checked when you can

Post Catalyst Fuel Trim System Too Rich (Bank 1)

40 brands affected · Generic SAE J2012 description.

Key terms: Catalytic converter: cleans the exhaust gases · 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 40

Brand	Code	Description	System
Ashok Leyland CV	P2097	Post Catalyst Fuel Trim System Too Rich (Bank 1) SAE	Powertrain
BAIC Motor	P2097	Post Catalyst Fuel Trim System Too Rich Bank 1 Brand	Powertrain
Mercedes-Benz	P2097	Post Catalyst Fuel Trim System Too Rich (Bank 1) SAE	Powertrain
BMW	P2097	Signal or value below threshold Brand	Powertrain
BYD	P2097	Post catalyst system too lean B2 Brand	Powertrain
Chery	P2097	Bank 1: Too Rich Brand	Powertrain
Daewoo	P2097	Crankshaft Sensor Incorrect Signal Brand	Powertrain
DFFS	P2097	Upstream oxygen sensor signal failure Brand	Powertrain
DFFX	P2097	Post catalyst system too lean B2 Brand	Powertrain
DFXK	P2097	Bank 1: Too Rich Brand	Powertrain
EOBD	P2097	Post catalyst fuel trim system too rich bank 1 Brand	Powertrain
Ford	P2097	Post Catalyst Fuel Trim System Too Rich (Bank 1) SAE	Powertrain
Geely	P2097	Bank 1: Too Rich Brand	Powertrain
GM	P2097	Post Catalyst Fuel Trim System Too Rich Bank 1 Brand	Powertrain
Great Wall	P2097	Post catalyst system too lean B2 Brand	Powertrain
Hafei	P2097	Post catalyst system too lean B2 Brand	Powertrain
Holden	P2097	HO2S Circuit Sensor 1 Brand	Powertrain
Honda	P2097	Post Catalyst Fuel Trim System Too Rich (Bank 1) SAE	Powertrain
Hyundai	P2097	Post Catalyst Fuel Trim System Too Rich (Bank 1) SAE	Powertrain
Isuzu	P2097	Post Catalyst Fuel Trim System Too Rich (Bank 1) SAE	Powertrain
Land Rover	P2097	Post Catalyst Fuel Trim System Too Rich (Bank 1) SAE	Powertrain
Maserati	P2097	Downstream fuel trim system 1 rich Brand	Powertrain
Mazda	P2097	Post Catalyst Fuel Trim System Too Rich (Bank 1) SAE	Powertrain
Mitsubishi	P2097	Dual O2S F/B system too rich B1 Brand	Powertrain
Nissan	P2097	Post Catalyst Fuel Trim System Too Rich (Bank 1) SAE	Powertrain
Opel	P2097	Post Catalyst Fuel Trim System Too Rich Bank 1 Brand	Powertrain
Peugeot	P2097	Post Catalyst Fuel Trim System Too Rich (Bank 1) SAE	Powertrain
Porsche	P2097	Post Catalyst Fuel Trim System Too Rich (Bank 1) SAE	Powertrain
Proton	P2097	Dual O2S F/B system too rich B1 Brand	Powertrain
Saab	P2097	Post Catalyst Fuel Trim System Too Rich Bank 1 Brand	Powertrain
MG (SAIC)	P2097	Fuel Trim (Post Catalyst) Bank 1 Too Rich Brand	Powertrain
Smart	P2097	Post Catalyst Fuel Trim System Too Rich (Bank 1) SAE	Powertrain
Sprinter	P2097	Post Catalyst Fuel Trim System Too Rich (Bank 1) SAE	Powertrain
Subaru	P2097	Post Catalyst Fuel Trim System Too Rich Brand	Powertrain
Suzuki	P2097	Post catalyst fuel trim system too rich (Bank 1) Brand	Powertrain
SWM Motor	P2097	Fuel system correction based on downstream oxygen sensor is too rich Brand	Powertrain
Tata	P2097	Post Catalyst Fuel Trim Too Rich Brand	Powertrain
Toyota	P2097	Downstream oxygen sensor trim too rich Brand	Powertrain
Volvo	P2097	Bank 1 Fuel Control Shifted Rich (FAOSC) Brand	Powertrain
Volkswagen	P2097	bank 1: too rich; Mechanical failure 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 5

These 7-character codes are manufacturer-specific variants of P2097 and may be reported by some scan tools.

Brand	Code	Description	System
SsangYong	P209700	Post catalyst fuel trim system too rich (bank 1) Brand	Powertrain
SsangYong	P209701	The throttle valve is jamming or is stiff Brand	Powertrain
SsangYong	P209702	The throttle valve is jamming or is stiff Brand	Powertrain
SsangYong	P209704	The throttle valve is jamming or is stiff Brand	Powertrain
SsangYong	P209708	The throttle valve is jamming or is stiff Brand	Powertrain

6Related codes

Browse Pxxx codes or P209xx codes.