PowertrainP041B

Caution

Severity: Caution - get it checked when you can

Exhaust gas recirculation (EGR) temperature sensor B range/performance failure

22 brands affected · Description from Toyota data.

Key terms: Catalytic converter: cleans the exhaust gases · EGR: exhaust gas recirculation, which cuts harmful gases · EVAP: the system that traps fuel vapour · Oxygen sensor: measures oxygen in the exhaust gas · Powertrain: engine, transmission and emissions

1What it means in plain English

This range covers emissions control (EGR, EVAP, oxygen sensors and the catalytic converter), but some manufacturers also use P04 codes for oil-pressure, brake-fluid and coolant-level warnings.

2Common causes

Clogged or faulty EGR valve
EVAP system leak (hoses, canister, fuel cap)
Faulty oxygen sensor
Ageing catalytic converter
Low oil, brake fluid or coolant (on some models)
Wiring or connector fault

3Can I drive?

Caution · drive with care

Do not assume this code is safe to drive. Check the description: if it names oil pressure, brake fluid, coolant, or a brake fault, stop safely and have it diagnosed before driving. Emissions-only codes (EGR, EVAP, catalyst) should still be checked before an emissions or roadworthiness inspection.

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 22

Brand	Code	Description	System
Ashok Leyland CV	P041B	No description available	Powertrain
BAIC Motor	P041B	Exhaust Gas Recirculation Temperature Sensor B Circuit Range/Performance Brand	Powertrain
BYD	P041B	Exhaust Gas Recirculation Temperature Sensor B Circuit Range/Performance Brand	Powertrain
Chery	P041B	Exhaust Gas Recirculation Temperature Sensor B Circuit Range/Performance Brand	Powertrain
Daewoo	P041B	Exhaust Gas Recirculation Temperature Sensor B Circuit Range/Performance Brand	Powertrain
DFFS	P041B	Exhaust Gas Recirculation Temperature Sensor B Circuit Range/Performance Brand	Powertrain
DFFX	P041B	Exhaust Gas Recirculation Temperature Sensor B Circuit Range/Performance Brand	Powertrain
DFXK	P041B	Exhaust Gas Recirculation Temperature Sensor B Circuit Range/Performance Brand	Powertrain
EOBD	P041B	Julat/prestasi litar sensor suhu 'B' EGR Brand	Powertrain
Geely	P041B	Exhaust Gas Recirculation Temperature Sensor B Circuit Range/Performance Brand	Powertrain
GM	P041B	Exhaust Gas Recirculation Temperature Sensor B Circuit Range/Performance Brand	Powertrain
Great Wall	P041B	Exhaust Gas Recirculation Temperature Sensor B Circuit Range/Performance Brand	Powertrain
Hafei	P041B	Exhaust Gas Recirculation Temperature Sensor B Circuit Range/Performance Brand	Powertrain
Holden	P041B	Exhaust Gas Recirculation 2 Control Circuit Brand	Powertrain
Hyundai	P041B	No description available	Powertrain
Isuzu	P041B	No description available	Powertrain
Land Rover	P041B	EGR Temperature Sensor 'B' Circuit Range/Performance Brand	Powertrain
Opel	P041B	Exhaust Gas Recirculation Temperature Sensor B Circuit Range/Performance Brand	Powertrain
Peugeot	P041B	No description available	Powertrain
Saab	P041B	Exhaust Gas Recirculation Temperature Sensor B Circuit Range/Performance Brand	Powertrain
MG (SAIC)	P041B	Exhaust Gas Recirculation Temperature Sensor B Circuit Range/Performance Brand	Powertrain
Toyota	P041B	Exhaust gas recirculation (EGR) temperature sensor B range/performance 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 P041B and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P041B27	EGR Temperature Sensor 'B' Circuit Range/Performance Signaländerungsrate ist oberhalb des zulässigen Grenzwertes. Brand	Powertrain
Mercedes-Benz	P041B28	EGR Temperature Sensor 'B' Circuit Range/Performance Signal-Offset ist außerhalb des zulässigen Bereiches. Brand	Powertrain
Sprinter	P041B28	No description available	Powertrain
Mercedes-Benz	P041B84	Temperature sensor 2 of the exhaust gas recirculation has a malfunction. There is a signal below the permissible limit value. Brand	Powertrain
Sprinter	P041B84	No description available	Powertrain

6Related codes

Browse Pxxx codes or P041xx codes.