PowertrainP0094

Caution

Severity: Caution - get it checked when you can

Fuel System Leak Detected - Small Leak

29 brands affected · Generic SAE J2012 description.

Key terms: Oxygen sensor: measures oxygen in the exhaust gas · Mass air flow sensor: measures the air going into the engine · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions

1What it means in plain English

This code is in the fuel and air metering range, which includes fuel-pressure and camshaft-timing faults.

2Common causes

Dirty or faulty mass air flow sensor
Vacuum or intake air leak
Weak fuel pump or clogged fuel filter
Faulty fuel injector
Faulty oxygen sensor
Wiring or connector fault

3Can I drive?

Caution · drive with care

Have it diagnosed promptly. Some codes in this range affect fuel pressure or camshaft timing; if the engine loses power, runs badly, or stalls, stop safely and get professional help.

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 29

Brand	Code	Description	System
Ashok Leyland CV	P0094	Fuel System Leak Detected - Small Leak SAE	Powertrain
BAIC Motor	P0094	Fuel System Leak Detected Small Leak Brand	Powertrain
Mercedes-Benz	P0094	Fuel System Leak Detected - Small Leak SAE	Powertrain
BYD	P0094	Fuel System Leak Detected Small Leak Brand	Powertrain
Chery	P0094	Fuel System Leak Detected Small Leak Brand	Powertrain
Daewoo	P0094	Fuel System Leak Detected Small Leak Brand	Powertrain
DFFS	P0094	Fuel System Leak Detected Small Leak Brand	Powertrain
DFFX	P0094	Fuel System Leak Detected Small Leak Brand	Powertrain
DFXK	P0094	Fuel System Leak Detected Small Leak Brand	Powertrain
EOBD	P0094	Fuel system leak detected - small leak Brand	Powertrain
Geely	P0094	Fuel System Leak Detected Small Leak Brand	Powertrain
GM	P0094	Fuel system small leak detected Brand	Powertrain
Great Wall	P0094	Fuel System Leak Detected Small Leak Brand	Powertrain
Hafei	P0094	Fuel System Leak Detected Small Leak Brand	Powertrain
Holden	P0094	Fuel Rail Low Pressure Brand	Powertrain
Honda	P0094	Fuel System Leak Detected - Small Leak SAE	Powertrain
Hyundai	P0094	Fuel System Leak Detected - Small Leak SAE	Powertrain
Isuzu	P0094	Fuel System Leak Detected - Small Leak SAE	Powertrain
Land Rover	P0094	Fuel System Leak Detected - Small Leak Brand	Powertrain
Mahindra	P0094	Fuel System Leak Detected - Small Leak SAE	Powertrain
Opel	P0094	Fuel system small leak detected Brand	Powertrain
Peugeot	P0094	Fuel System Leak Detected - Small Leak SAE	Powertrain
Saab	P0094	Fuel system small leak detected Brand	Powertrain
MG (SAIC)	P0094	Fuel System Leak Detected Small Leak Brand	Powertrain
Sprinter	P0094	Fuel System Leak Detected - Small Leak SAE	Powertrain
Suzuki	P0094	Fuel System Leak Detected – Small Leak Brand	Powertrain
Tata	P0094	Small Fuel Rail Leak Brand	Powertrain
Toyota	P0094	Transmission output speed signal failure Brand	Powertrain
Volkswagen	P0094	SAE: Fuel System Leak Detected -- Small Leak 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 P0094 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P009400	A fine leak was detected in the fuel system. Brand	Powertrain
Mercedes-Benz	P00942A	No description available	Powertrain
Sprinter	P00942A	No description available	Powertrain
Mercedes-Benz	P009432	No description available	Powertrain
Sprinter	P009432	No description available	Powertrain

6Related codes

Browse Pxxx codes or P009xx codes.