Engine-Codes - Toyota - P0441 Toyota

P0441 Toyota Code - Evaporative Emission Control System Incorrect Purge Flow

- Code Popularity: 273,537 Views
- Repair Importance Level: 1/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P0441 Toyota?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Loose or missing gas cap
  • Faulty Purge Vacuum Switching Valve (VSV)
  • Purge Vacuum Switching Valve harness is open or shorted
  • Purge Vacuum Switching Valve circuit poor electrical connection
  • Faulty Canister Pump Module
  • Faulty EVAP Canister
  • Faulty Engine Control Module (ECM)

Code Tech Notes

The P0441 code means that the control module has detected a leak in the Evaporative Emission (EVAP). A loose fuel tank filler gas cap is the most common cause that triggers the P0441 code.

There are factory service bulletins for the following Toyota models:

Toyota RAV4
Toyota Tercel
Toyota Paseo
Toyota Camry
Toyota Avalon
Toyota Tacoma
Toyota 4Runner
Toyota T-100
Toyota Factory Service Bulletin OBDII Code P0441

2003–2004 Toyota Corolla
2003–2005 Toyota Matrix
Toyota Factory Service Bulletin OBDII Code P0441 Corolla and Matrix

2003-2004 Toyota 4Runner
2003-2004 Toyota Tundra
2004 Toyota Camry
2004 Toyota Sienna
2004 Toyota Highlander
2004 Toyota Solara
Toyota Factory Service Bulletin OBDII Code P0441

If P0441 is combined with P0440 and P0446 use this bulletin:
2000-2003 Toyota Solara
2000-2003 Toyota Avalon
2000-2003 Toyota Camry
2001-2003 Toyota Sienna
Toyota Factory Service Bulletin OBDII Code P0441 Solara, Avalon, Camry, Sienna









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How to Fix the DTC P0441 Toyota?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Search for P0441 Toyota Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0441 Toyota code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P0441 Toyota Code Mean?

5 hours after the ignition switch is turned off, the leak detection pump creates negative pressure (vacuum) in the Evaporative Emission (EVAP) system. The Engine Control Module (ECM) monitors for leaks and actuator malfunctions based on the EVAP pressure. The leak detection pump creates negative pressure through the reference orifice. When the system is normal, the EVAP pressure is between 97 to 100 kPa(abs) [726 to 750 mmHg(abs) (Typical value)] and saturated within a minute.
If stabilized pressure is higher than [second reference pressure x 0.2], ECM determines that Purge Vacuum Switching Valve (VSV) is stuck open. If pressure does not return to near atmospheric pressure, ECM determines that purge VSV is stuck closed. The ECM illuminates the MIL and stores a Diagnostic Trouble Code (DTC) if this malfunction is detected in consecutive drive cycles.
P0441 Toyota Code - Evaporative Emission Control System Incorrect Purge Flow

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