PowertrainP01C4

Serious

Severity: Serious - have it checked soon

Fuel pressure sensor 'A' circuit range/performance

6 brands affected · Description from Toyota data.

Key terms: Oxygen sensor: measures oxygen in the exhaust gas · Mass air flow sensor: measures the air going into the engine · 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, air and oxygen sensor range, which also includes coolant temperature 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 6

Brand	Code	Description	System
Ashok Leyland CV	P01C4	No description available	Powertrain
EOBD	P01C4	Drivstofftrykksensor 'A' kretsområde/ytelse Brand	Powertrain
Honda	P01C4	No description available	Powertrain
Isuzu	P01C4	No description available	Powertrain
Land Rover	P01C4	Fuel Pressure Sensor 'A' Circuit Range/Performance Brand	Powertrain
Toyota	P01C4	Fuel pressure sensor 'A' circuit range/performance 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 P01Cxx codes.