PowertrainP1451

Caution

Severity: Caution - get it checked when you can

Evaporative Emission System Vent Control Circuit Malfunction

24 brands affected · Generic SAE J2012 description.

Key terms: Control module: a small computer that runs one part of the car · 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 24

Brand	Code	Description	System
Ashok Leyland CV	P1451	Evaporative Emission System Vent Control Circuit Malfunction SAE	Powertrain
BMW	P1451	Short circuit to negative or open circuit Brand	Powertrain
BYD	P1451	NO. 338 battery voltage sampling wire loop fault Brand	Powertrain
Chery	P1451	Secondary Air Injection System: Short to Ground Brand	Powertrain
Daewoo	P1451	Canister Vent Solenoid Circuit Brand	Powertrain
DFXK	P1451	Secondary Air Injection System: Short to Ground Brand	Powertrain
EOBD	P1451	EVAP BPS krug visok Brand	Powertrain
Geely	P1451	Secondary Air Injection System: Short to Ground Brand	Powertrain
GM	P1451	Canister Vent Solenoid Circuit Brand	Powertrain
Great Wall	P1451	Diesel particulate filter needs replacement Brand	Powertrain
Holden	P1451	Diesel Particulate Filter (DPF) Low Efficiency Brand	Powertrain
Honda	P1451	Evaporative Emission System Vent Control Circuit Malfunction SAE	Powertrain
Isuzu	P1451	Evaporative Emission System Vent Control Circuit Malfunction SAE	Powertrain
Land Rover	P1451	Evaporative Emission System Vent Control Circuit Malfunction SAE	Powertrain
Maserati	P1451	Diesel Particulate Filter System Performance Brand	Powertrain
Mitsubishi	P1451	Canister pressure sensor noise Brand	Powertrain
Opel	P1451	Canister Vent Solenoid Circuit Brand	Powertrain
Peugeot	P1451	Evaporative Emission System Vent Control Circuit Malfunction SAE	Powertrain
Proton	P1451	Canister pressure sensor noise Brand	Powertrain
Saab	P1451	Canister Vent Solenoid Circuit Brand	Powertrain
Subaru	P1451	Evaporative Emission System Vent Control Circuit Malfunction SAE	Powertrain
Suzuki	P1451	Barometric pressure sensor performance problem Brand	Powertrain
Tata	P1451	Evaporative Emission System Vent Control Circuit Malfunction SAE	Powertrain
Toyota	P1451	Barometric pressure sensor 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 P145xx codes.