Question about Hyundai Motor 2003 Elantra

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Where is the EVC purge valve on a 2003 elantra

Hi, the car has 134000 miles on it and runs smooth...got code PO456. Well I, looked up the code ( Evaporative Emission Control System Leak Detected Very Small ). With that infor and possible cause's, I changed the gas cap also, eye-balled the gas tank charcoal filter canister but didn't change filter...But noticed one metal hose was rusted badly and quite loose so I, changed that out. Then cleared the code and for some stupid reason my 2003 hyundai elantra has a large ( driving cycle ) before the computer is ready for state inspection ! I drove over 130 miles only too get a new code PO 441. Please excuse my frustration. Should I change the charcoal filter and purge valve ? I am not a mechanic just a "jack of many trades and master of none" Also, I've got lots of tools but no vac gages. Thank your help in advance. keith

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Https://www.youtube.com/watch?v=5PQlQ8K2MxU

Posted on Oct 04, 2017

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: emissions test comes up not ready - can't pass inspection

Under the hood, there is a fuse block. I believe it is on the driver's side of your vehicle. Open that box, and pull the "ECU" fuse. Leave the fuse out for at least 5 minutes. Put the fuse back in, start the car, and let it idle for at least another 5 minutes. Do not drive the car, touch the gas, or even look at the gas pedal for these 5 minutes, as the ECU is remapping itself. This will properly reset the ecu and clear the codes. After this you may drive the car.

Posted on May 28, 2009

ghost4548
  • 776 Answers

SOURCE: CIL on, code P0441, using more gas, hard to fill up

In the first place, P0441 = Evap. Emission System Incorrect Purge Flow. The 'CANISTER CLOSE VALVE' you mention is normally OPEN until the ECU (Engine Control Module) decides to check the fuel system for any leakage - IT closes the valve and then applies a vacuum to the system and monitors it for leakage. This valve (CCV), if sticking CLOSED, only MIGHT set P0441. The most suspect component is the Purge Control Solenoid Valve (located on/near the engine) and is also controlled by the ECU. If this valve is malfunctioning, it can absolutely cause this P0441 to SET!... There is also another component which can CAUSE this code to SET... it's the Differential Pressure Sensor (DPS) or Fuel Tank Pressure Sensor (FTPS) connected to the Evaporative Emissions System. It is this component which monitors 'vacuum' pressure on the system to determine if there is any leakage.. its signal is also used by the ECU to monitor 'purge' of the charcoal canister under normal driving conditions. There is yet another component which can cause the ECU to set P0441.. and that is a restriction in the 'purge' circuit.. clogged charcoal canister, air filter, or a kink in the Evap hose(s).

Posted on Jul 18, 2009

ghost45
  • 1280 Answers

SOURCE: 2000 elantra po455 code evap emission control

Large leak?... Fuel Cap not tight or the wrong one is installed. Also, the charcoal canister close valve may be stuck 'open' AND/OR the purge control solenoid valve may be stuck 'closed.'

Posted on Oct 18, 2009

ghost45
  • 1280 Answers

SOURCE: Having the same problem the other guy described.

First of all, these codes are what are called "Powertrain Trouble Codes' (that's what the "P" means P=Powertrain). TCM Request (Transmission Control Module = TCM). The request was to turn on the 'Check Engine" light.
P0720 - output speed sensor circuit malfunction
P0715 - Input speed sensor (turbin speed) circuit malfunction
P0442 - Evaporative Emission System Leak (Small Leak)
P0455 - Evaporative Emission System Leak (Large Leak)
Check fuel filler cap problems - for Evap Emiss leaks
Replace the pulse generators & have the trans fluid replaced/flushed.
The Main Catalyst System Efficiency Bank 1 Is P0420, not P0442
If you had P0420 code, the catalytic converter is shot... and that's an expensive component.

Posted on Oct 18, 2009

ghost45
  • 1280 Answers

SOURCE: i have a 2002 hyundai accent, i could not pump gas

First GUESS.. replace the charcoal canister after you have cleaned out the hoses between it and the canister. Then blow air between the purge control solenoid valve and the fuel tank.

Posted on Nov 04, 2009

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Tahoe purge valve replacement code p0496 - YouTube

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PO456 Code Replaced gas cap and bad filler neck (rusted). Purge valve has loose components rattling when I tap on it.


It is impossible to answer your question without knowing the YEAR, MAKE, and MODEL of your vehicle.
That being said, on almost all vehicles, the purge valve is an easily-replaceable part. If you are not able to find the EXACT purge valve for your vehicle, find something that will fit in its place (they all work the same).

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Codes0441 0442 0455 0456


codes po441 po442 po455 po456. code po441 - EVAP system no flow during purge conditions.code po442 -EVAP system small leak detected conditions. code po455 - EVAP system large leak detected conditions.code po456 - EVAP system very small leak detected. possible causes loose damaged missing fuel cap.fuel tank sensor disconnected or failed. ORING on top fuel sending unit leaking.purge valve vapor line clogged disconnected or purge solenoid failed.vent solenoid not closing or has failed.

May 23, 2013 | 2002 Dodge Durango

1 Answer

What does the code po456 mean?


Usually this P0456 code is caused by an incorrect or faulty gas cap. Filling the fuel tank with the engine running could conceivable cause this code as well or if the cap wasn't properly tightened. Any of the following could also be the cause:

* A small leak in any of the EVAP hoses or fuel tank hoses
* A small leak in the purge valve or vent valve
* The EVAP Canister may be leaking

Jan 08, 2013 | 2005 Ford Focus

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How to fix obd 2 PO456 on jeep grand cherokee laredo 2002


Usually this P0456 code is caused by an incorrect or faulty gas cap. Filling the fuel tank with the engine running could conceivable cause this code as well or if the cap wasn't properly tightened. Any of the following could also be the cause:
  • A small leak in any of the EVAP hoses or fuel tank hoses
  • A small leak in the purge valve or vent valve
  • The EVAP Canister may be leaking

Oct 09, 2012 | 2003 Jeep Grand Cherokee

1 Answer

Check engine light gave me the po456 code


Usually this P0456 code is caused by an incorrect or faulty gas cap. Filling the fuel tank with the engine running could conceivable cause this code as well or if the cap wasn't properly tightened. Any of the following could also be the cause:

  • A small leak in any of the EVAP hoses or fuel tank hoses
  • A small leak in the purge valve or vent valve
  • The EVAP Canister may be leaking

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1 Answer

I have a obd code of PO456 for a 2003 dodge Durango.Do you know what that would be.


When you get the code,find out what it is,or buy a code reader and a book of codes

PO456 EVAP Contol System Leak (Very Small) 0.508mm (0.020 inch)

Gas Cap
Holes or cuts in fuel vapor hoses
Loose hoses
Evap Component failures
Vent solenoid open
Canister Purge Valve,issues

And on and on


Have a smoke machine put on the system and repaired

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1 Answer

2000 elantra po455 code evap emission control system leak detected (gross leak) Any suggestions ?


Large leak?... Fuel Cap not tight or the wrong one is installed. Also, the charcoal canister close valve may be stuck 'open' AND/OR the purge control solenoid valve may be stuck 'closed.'

Oct 13, 2009 | Hyundai Motor 2003 Elantra

1 Answer

Elantra purge valve under warranty?


Who did you buy your extended warranty through?... It may or may NOT be covered -- depends on your extended warranty agreement.

Jun 10, 2009 | 2000 Hyundai Elantra

2 Answers

Let our Experts solve your "I have a 2002 Hyundai Elantra with fault code P0441 Not sure what this code means or how to fix the Problem.


P0441 is evap system insufficient purge. It means that the computer thinks the purge control valve isn;t operating properly. The fuel tank pressure sensor can send faulty info causing code to set but most of the time it is just the purge valve that needs replaced

May 03, 2009 | Hyundai Elantra Cars & Trucks

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