Question about 2004 Hyundai Santa Fe

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Check Engine Code PO446

What is the cause/correction for an Evap System Vent Malfunction

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Purge control valve sticking either open or closed. location depends on what engine you have

Posted on Jul 21, 2009

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Posted on Jan 02, 2017

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I have DTC Codes; P0441, P0442, and P0446 EVAP codes. Have had too many things replaced to name and still have codes. Originally, only had one code P0442, after the unsuccessful removal of severalevap


code p 0442 refers to evaporative emission(EVAP) system---small leak detected====causes--hose connections--intake leak--EVAP canister--EVAP canister purge valve
it also refers to --large leak detected====causes fuel cap loose, off---mechanical fault--hose connections---EVAP pressure sensor
code p 0441 refers to EVAP system--incorrect flow detected====causes hoses, intake leak-- EVAP canister purge valve
code p 0446 refers to EVAP system, vent control---circuit malfunction===causes--wiring---EVAP canister purge valve----ECM
if you can remember when the problem started ( after refueling) it may be that the cap is not fitted correctly
it could that in the fixing process , the wiring has not been correctly installed or the problem is the canister purge valve needs attention

Feb 06, 2017 | Cars & Trucks

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Is there a fuse for the vent solenoid? getting P0449 code but vent is good.


code p 0449 refers to evaporative emission (EVAP)system, vent valve ---circuit malfunction===causes --wiring ---EVAP cannister purge valve ---ECM
check the wiring for breaks , bad connections
replace the purge valve
the vent valve is part of the purge system of the EVAP system( fuel system)

Oct 08, 2016 | 2005 Chevrolet Equinox

1 Answer

Just got a check engine light on P0443.


code p 0443 refers to evaporative emission (EVAP) canister purge valve--circuit malfunction===causes--wiring--EVAP canister purge valve--ECM
code p 0446 refers to EVAP system vent control--circuit malfunction===causes wiring---EVAP purge valve ---ECM
check the wiring and connection to the purge valve unit

Jan 31, 2016 | Cars & Trucks

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What are the probable causes for DTCs P0440 P0441, and P0446?


code p 0440 refers to EVAP system--system malfunction==causes --hose connections --intake leak---EVAP canister purge valve
code p 0441 refers to EVAPO system --incorect flow detected ====causes --hose connections ---intake leak---EVAP canister purge valve
code p 0446 refers to EVAP system---vent control--circuit malfunction====causes wiring---EVAP canister purge valve ---ecm
replace the purge valve
as to where it is , the location will be in the workshop manual or have a shop point it out to you.

Aug 29, 2015 | 2001 Toyota Camry

1 Answer

Hello there,my 2001 echo is lighting up trouble codes p0440 p0441 p0446; how and where should i start?


code p0440 refers to evaporative emission (EVAP) system--malfunction=== causes --hose connections --intake leak--EVAP canister purge valve
code po441 refers to EVAP --incorrect flow detected==causes the same as for po440
code po446 refers to EVAP system vent control --circuit malfunction===causes --wiring---EVAP can purge valve--ECM
generally I would replace the purge valve as it is common to all codes

Feb 03, 2014 | Cars & Trucks

1 Answer

Po156 po161 po446


code p0156 refers to heated oxygen sensor 2 bank2 circuit malfunction===causes--heating inoperative--wiring---HO2S--EcM
code p0161 refers to HO2S 3 -circuit malfunction==causes the same as p0156
p04456 refers to evaporative emission (EVAP) system-vent control-circuit malfunction====causes--wiring--EVAP canister purge valve--ECM

Oct 13, 2013 | 2005 Kia Spectra

1 Answer

I replaced evap vent solenoid & dtc came back


Here is the definition of the code and possible causes.

P0449 PONTIAC Description The Engine Control Module (ECM) monitors the Evaporative Emission System (EVAP) Vent Valve/Solenoid system wiring for opens or shorts.

When is the code detected?The Engine Control Module (ECM) has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system.

Possible causes - Vacuum leaks, damaged hoses or improper routing
- EVAP system - Check fuel cap, canister, valves or components
- Faulty purge or vent solenoids
- Check connector and wiring
- Fuel saturated vapor canister
- Failed EVAP vent solenoid
Read more: http://engine-codes.com/p0449_pontiac.html#ixzz2M1YJd7DU

Feb 26, 2013 | 2002 Pontiac Grand Prix

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Toyota echo won't start code 440 441 446


Error Code: P0440
Fault Location:
Evaporative Emission (EVAP) System - Malfunction
Possible Cause:
Malfunction Indicator Lamp (MIL) active.
Soution:
Check Evaporative Emission (EVAP) System Sealing.
Check Evaporative Emission (EVAP) Canister Purge Regulator Valve .
Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve .

Error Code: P0441
Fault Location:
Evaporative Emission (EVAP) System - Incorrect Flow Detected
Possible Solutions:
Check Evaporative Emission (EVAP) Canister Purge Regulator Valve .
Perform Output Test.
Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve .
Check Evaporative Emission (EVAP) Canister.
Perform Basic Setting.
Check Pipes between Tank Breathing and Throttle Body.

Error Code: P0446
Fault Location:
Evaporative Emission (EVAP) System, Vent Control - Circuit Malfunction
Possible Cause:
Wiring harness.
Evaporative emission (EVAP) canister purge valve.
Engine control module (ECM).

Feb 25, 2013 | 2002 Toyota ECHO

1 Answer

I have nissan xtrail 2005 code p1446 what is my problem


Trouble Code: P1446

EVAP Canister Vent Valve Malfunction (Closed)

Possible Causes:


EVAP canister vent control valve is damaged or has failed.EVAP canister vent control valve rubber tube is blocked.EVAP control system pressure sensor is damaged or has failed.EVAP water separator is damaged or has failed.EVAP canister is saturated with water.Click here to see the suspected parts to check out.

Jan 29, 2013 | 2005 Nissan X-Trail 2.5i

1 Answer

Got a code of p0446 on my 95 gmc jimmy 4wd. what is it and how do i fix it? When do i know it is solved? Or what should i look for?


P0446 - Restricted/Blocked EVAP Vent Path.

The PCM has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system.

Possible Causes:
Dirt and dust intrusion into the EVAP canister vent hose assembly, resulting in restricted air flow, may cause this condition.

Possible Solutions:
- Clean the EVAP canister vent hose assembly.
- Replace the EVAP canister vent valve & solenoid.

The DTC will clear once the issue has been resolved or you can clear the code with a GM approved scanner. Do not clear the code before the issue is corrected otherwise the light will keep coming on.

Jan 23, 2011 | 1995 GMC Jimmy

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