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Check Engine Light came on, it was diagnosed as error code P0441 what does that mean

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The Diagnostic Trouble Code table says for P0441 Evap Ctrl System Incorrect Purge:

General Description

The evaporative emission control system prevents hydrocarbon (HC) vapors from the fuel tankCheck Engine Light came on, it was diagnosed as - 2_bing.gif from escaping into the atmosphere where they could form photochemical smog. Gasoline vapors are collected in the charcoal canister. The ECM controls the Purge Control Solenoid Valve (PCSV) to purge any collected vapors from the canister back to the engine for combustion. This valve is actuated by the purge control signal from the ECM and controls fuel2_bing.gif vapor from the canister to the intake manifold.
DTC Description

During "test of vapour generation" a new value from the tank pressure sensor is measured and compared with the start pressure at beginning of "test of vapour generation".
The ECM sets DTC P0441 if the pressure signal decrease occurs and the difference is below the predetermined threshold. If same error code is set in the next driving cycle, the ECM illuminates the MIL.

Unfortunately, this is not the 'turn gas cap 3 clicks" fault. Your likely cause is the PCSV valve is sticking in the open position.

Your test inspection procedure is:

System Inspection
PCSV Inspection
1. Ignition "OFF" .
2. Disconnect the hose leading from the PCSV to the intake manifold at PCSV.
3. Using a vacuum pump, apply specified vacuum(Approx. 15 in, Hg) to the manifold side of the valve and verify PCSV holds vacuum.
4. Ignition "ON" & Engine "OFF".
5. Install scantool and select "EVAP PURGE VALVE" on the Actuation Test mode.
6. Activates "EVAP PURGE VALVE" by pressing "STRT(F1)" key.
7. Verify PCSV release vacuum while valve is activating(should hear a faint click from PCSV).
8. Repeat this procedure 4 or 5 times to ensure PCSV reliability.
9. Is PCSV working properly?
YES
? Thoroughly check fuel vapor hoses and hose clamp and replace as necessary. Go to "Terminal and connection inspection" procedure.
NO
? Thoroughly check fuel vapor hoses and hose clamps between PCSV and intake manifold. Repair as necessary.
If OK, test with a new PCSV and check for proper operation. If problem is corrected, replace PCSV and go to "Verification of Vehicle Repair" procedure

I realize you probably do not have a ScanTool, as this is a dealer testing console. You should start by inspecting the hoses and connection to the PCSV.

Posted on Jun 04, 2010

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  • Hyundai Master
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Check the purge flow ,system,check all vacuums and vent hoses

Posted on Jun 04, 2010

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What does this code P0441 mean for engine light on 2004 dodge ram 1500 truck?


2004 Dodge Ram 1500 Truck Code P0441 indicates that a part of the EVAP control system is no longer functioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.
EVAP emission canister purge is controlled by a valve which allows engine vacuum to pull stored fuel vapors from fuel tank into the engine to be burned, rather than be vented to atmosphere. A vacuum switch is used to detect when flow exists. If the PCM commands purge and sees that the switch is closed (indicating no detected purge flow) P0441 is set.

Symptoms :

Likely, no symptoms will be discernible to the driver, other than the illuminated Check Engine Light.

Causes :

A code P0441 could mean one or more of the following has happened:

Bad vacuum switch Broken or damaged EVAP line or canister Open in PCM purge command circuit Open or short in Voltage feed circuit to Purge Solenoid Faulty purge solenoid Restriction in EVAP solenoid, line or canister Corrosion or resistance in purge connector Bad PCM

Possible Solutions :

With a P0441 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try: Common Chrysler fix - Replace Leak Detection Pump / LDP Repair damaged EVAP lines or canister Repair open or short in voltage feed circuit to Purge Solenoid Repair open in PCM purge command circuit Replace purge Solenoid Replace vacuum switch Repair restriction in Evap line or canister or solenoid Repair resistance in purge connector Replace PCM

I hope this helps.

May 08, 2015 | Dodge Cars & Trucks

1 Answer

What causes trouble code c1201


P0441 code is likely bad or missing gas cap.
check this site for more explanation:
http://engine-codes.com/p0441_lexus.html

Oct 20, 2014 | 2009 Lexus ES 350

2 Answers

P0441 4runner check engine light


Google the Code

OBD2 Code PO441

Mar 27, 2013 | 2004 Toyota 4Runner

1 Answer

Solution for engine check up light for code p0441 for hyundai accent 2001


P0441 Evaporative Emission Control System Incorrect Purge FlowOBD-II Trouble Code Technical Description

Evaporative Emission Control System Incorrect Purge Flow
What does that mean?

This indicates that a part of the EVAP control system is no longer functioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

EVAP emission canister purge is controlled by a valve which allows engine vacuum to pull stored fuel vapors from fuel tank into the engine to be burned, rather than be vented to atmosphere. A vacuum switch is used to detect when flow exists. If the PCM commands purge and sees that the switch is closed (indicating no detected purge flow) P0441 is set.
Symptoms

Likely, no symptoms will be discernible to the driver, other than the illuminated Check Engine Light.
Causes

A code P0441 could mean one or more of the following has happened:

  • Bad vacuum switch
  • Broken or damaged EVAP line or canister
  • Open in PCM purge command circuit
  • Open or short in Voltage feed circuit to Purge Solenoid
  • Faulty purge solenoid
  • Restriction in EVAP solenoid, line or canister
  • Corrosion or resistance in purge connector
  • Bad PCM
Possible Solutions

With a P0441 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:

  • Common Chrysler fix - Replace Leak Detection Pump / LDP
  • Repair damaged EVAP lines or canister
  • Repair open or short in voltage feed circuit to Purge Solenoid
  • Repair open in PCM purge command circuit
  • Replace purge Solenoid
  • Replace vacuum switch
  • Repair restriction in Evap line or canister or solenoid
  • Repair resistance in purge connector
  • Replace PCM

Other EVAP DTCs: P0440 - P0441 - P0442 - P0443 - P0446 - P0453 - P0455 - P0456

Jul 11, 2012 | Cars & Trucks

1 Answer

All of a sudden my check eng light came on, i have a 2005 hyundai santa fe. when checked code P0441 popped up. what does this mean?


P0441 - Emission System Incorrect Purge Flow

Usually this code is set when the PCSV (Purge Control Solenoid Valve) sticks OPEN. Im not saying that replacing this valve WILL fix the problem... I'm only sharing with you my experiences as a Platinum Certified Hyundai Technician (9 times out of 10, this valve is either leaking or is stuck open).

Otherwise, have the vehicle properly diagnosed by a Qualified Hyundai Service Technician.

Jun 27, 2011 | Hyundai Santa Fe Cars & Trucks

2 Answers

My engine check indication light come on with error code p0441


These codes are emission control related and indicate a leak in the fuel evaporative system, this is a complicated system and requires technicians that really know what they are doing to diagnose.
If you want to try a simple repair yourself replace the gas cap with a OEM unit from the toyota dealer, that's about all I can recommend, if that doesn't help it's time to get some help from real professionals that can diagnose this kind of problem, there is a battery of tests that must be performed to isolate this problem, my best advice is to get the toyota dealer involved.

Apr 01, 2011 | 2000 Toyota Camry

2 Answers

I have a 2003 dodge stratus the check engine light is on the codes i am getting are p0440 and p0441 what can i do to get the codes gone so i can pass the e check


Repair the EVAP System Malfunction

The 441 is incorrect purge flow

I wouldn't throw parts at it,have it properly
diagnosed

Mar 03, 2011 | Dodge Stratus Cars & Trucks

1 Answer

Error code p0441 on toyota rav4 97


The code indicates a leak in the evaporative system. 90% of the time it is a faulty gas cap.

Feb 25, 2010 | 1997 Toyota RAV4

1 Answer

Code error P0441


this code refers to EVAP Emission Control System Incorrect Purge Flow, it can be tricky to diagnose because of the number of parts, I would first check the vacuum hoses between the purge valve and the air cleaner, then the purge valve and the canister, also check the fuel tank vent and fuel cap valve and gasket. any one of these can cause this check engine code. after checking this I would reset the computer and see if it comes back.

Apr 13, 2009 | 2004 Hyundai Tiburon

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