PowertrainP009B

Serious

Severity: Serious - have it checked soon

Fuel Pressure Relief Control Circuit/Open

28 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

Safety: This code relates to fuel pressure or a fuel leak, which carries a stall or fire risk.

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?

Serious · drive with care

Do not drive if you smell fuel. Have the fuel system checked before driving further: a fuel leak or loss of pressure can cause a fire or make the engine stall.

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 28

Brand	Code	Description	System
Ashok Leyland CV	P009B	Fuel Pressure Relief Control Circuit/Open SAE	Powertrain
BAIC Motor	P009B	Fuel Pressure Relief Control Circuit/Open Brand	Powertrain
Mercedes-Benz	P009B	Fuel Pressure Relief Control Circuit/Open SAE	Powertrain
BYD	P009B	Fuel Pressure Relief Control Circuit/Open Brand	Powertrain
Chery	P009B	Fuel Pressure Relief Control Circuit/Open Brand	Powertrain
Daewoo	P009B	Fuel Pressure Relief Control Circuit/Open SAE	Powertrain
DFFS	P009B	Fuel Pressure Relief Control Circuit/Open Brand	Powertrain
DFFX	P009B	Fuel Pressure Relief Control Circuit/Open Brand	Powertrain
DFXK	P009B	Fuel Pressure Relief Control Circuit/Open Brand	Powertrain
EOBD	P009B	Brandstofdrukontlastingsregelcircuit/open Brand	Powertrain
Geely	P009B	Fuel Pressure Relief Control Circuit/Open Brand	Powertrain
GM	P009B	Fuel Pressure Relief Control Circuit/Open Brand	Powertrain
Great Wall	P009B	Fuel Pressure Relief Control Circuit/Open Brand	Powertrain
Hafei	P009B	Fuel Pressure Relief Control Circuit/Open Brand	Powertrain
Holden	P009B	Fuel Pressure Relief Control Circuit/Open SAE	Powertrain
Honda	P009B	Fuel Pressure Relief Control Circuit/Open SAE	Powertrain
Hyundai	P009B	Fuel Pressure Relief Control Circuit/Open SAE	Powertrain
Isuzu	P009B	Fuel Pressure Relief Control Circuit/Open SAE	Powertrain
Land Rover	P009B	Fuel pressure relief control - circuit open Brand	Powertrain
Mitsubishi	P009B	Fuel Pressure Relief Control Circuit/Open SAE	Powertrain
Opel	P009B	Fuel Pressure Relief Control Circuit/Open Brand	Powertrain
Peugeot	P009B	Fuel Pressure Relief Control Circuit/Open SAE	Powertrain
Proton	P009B	Fuel Pressure Relief Control Circuit/Open SAE	Powertrain
Saab	P009B	Fuel Pressure Relief Control Circuit/Open Brand	Powertrain
MG (SAIC)	P009B	Fuel Pressure Relief Control Circuit/Open Brand	Powertrain
Subaru	P009B	Fuel Pressure Relief Control Circuit/Open SAE	Powertrain
Tata	P009B	Fuel Pressure Relief Control Circuit/Open SAE	Powertrain
Toyota	P009B	Fuel pressure relief control circuit/open 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.

5Related codes

Browse Pxxx codes or P009xx codes.