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P0441 code means what ? - 2004 Dodge Neon

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Evaporative Emission Control System Incorrect Purge Flow
The "EVAP purge flow" faults are issues between the carbon cannister and the intake. The EVAP leak detection generally concerns the fuel tank to carbon cannister plumbing.
A little background. The EVAP or evaporative emission system is a control system to keep vapors from evaporation in the fuel tank from getting into the atmosphere. The fuel tank is not vented, but rather the vapors are piped to the carbon cannister (usually located behind the pass. side front wheel) where the charcoal element absorbs the vapor. This is actually a vapor "storage" device. Under certain engine operating conditions, the ECU activates the Cannister Purge Valve (N80) which opens and allows the engine vacuum to **** the fuel vapors back out of the carbon cannister. This purges the vapor, allowing the cannister to absorb more vapor. This evap system has been on vehicles since the '70s.
As part of the OBDII standard effective for 1996 cars and newer, it was mandated that leaks in the systems must be detected and reported as a fault which will set the Check Engine Light (CEL). To detect leaks, the system is pressurized by a pump so that leaks can be detected by a lack of appropriate pressure in the system. If there is a leak, such as a cracked vent hose, loose (or leaky) gas cap, poorly installed or defective O-rings on the fuel level senders on the fuel tank, etc. a code will be set. On the cannister to intake side, leaks are detected by deviations in the idle control system. If you have leaks in the lines from the carbon cannister to the intake, intake leaks, a defective purge valve, etc you will often get purge flow faults.
My first recommendation is to closely inspect all the small vacuum lines connected to the intake manifold. The corrugated plastic lines are often the culprits, as well as the fabricate covered vacuum lines. Also consider replacing the gas cap.

Posted on Jul 06, 2009

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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 soleniod
  • Repair resistance in purge connector
  • Replace PCM

Posted on Jul 06, 2009

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So more or less this would be the same on a 2005 Dodge Neon? Also, my engine DOES run and sound different since the Engine light came on. Resulting in the same Pcode 0441. "EVAP purge flow" error. I'd like to print out your possible diagnosis and solution so that I may take it with me when I get it fixed....
Thabks!
Angela

Posted on Nov 26, 2009

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Posted on Jan 02, 2017

Ted Schore

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SOURCE: Code P0441 and P0446. What does it mean?

Both codes are with the EVAP SYSTEM, there are numerous items it could be. A repair shop that does Toyotas or the delaler would be the best to check it out for you. Its not anything that will leave you walking or disable the car.

Posted on Nov 13, 2009

Daniel Morton

  • 747 Answers

SOURCE: code p0441

po441 evaporative emission control system incorrect purge flow
po404exhaust gas recirculation control circuit range performance sounds like a dirty or bad egr valve

Posted on Sep 04, 2012

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this codes is EVAP failure.
that means in bar stool language, the tank vapor venting system.
is no longer contained, (breached ) or means its failing, for other reasons.
what to do is this, tighten the gas cap, clear the code and see if it comes back , if it repeats try a new cap.
if repeats again (note cheap to expensive fixes)
get the EVAP system pressure tested. (yes, all shops do this)
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Code p0441


po441 evaporative emission control system incorrect purge flow
po404exhaust gas recirculation control circuit range performance sounds like a dirty or bad egr valve

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getting code p441 could be caused by evap purge solenoid vacuum line loose leaking or restricted, evap purge solenoid faulty, evap purge vacuum line to canister leaking or disconnected,evap canister failed.

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Hi I have a P0441 Check engine code


Code P0441 means Evaporative Emission Control System Incorrect Purge Flow. Look for a cracked or split line.

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Code P0441 and P0446. What does it mean?


Both codes are with the EVAP SYSTEM, there are numerous items it could be. A repair shop that does Toyotas or the delaler would be the best to check it out for you. Its not anything that will leave you walking or disable the car.

Nov 13, 2009 | 1998 Toyota Corolla

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