P0441 2002 TOYOTA HIGHLANDER - Evaporative Emission Control System Incorrect Purge Flow
P0441 2002 TOYOTA HIGHLANDER Possible Causes
- Missing Fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- Incorrect fuel tank vacuum relief valve
- Purge VSV
- Leakage from EVAP system
First diagnose P0441 2002 TOYOTA HIGHLANDER code
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 terminals.
P0441 2002 TOYOTA HIGHLANDER Tech Notes
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Cost of diagnosing the P0441 2002 TOYOTA HIGHLANDER code
Labor: 1.0The cost of diagnosing the P0441 2002 TOYOTA HIGHLANDER code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
When is the P0441 2002 TOYOTA HIGHLANDER code detected?Pressure in charcoal canister and fuel tank does not drop during purge control (2 trip detection logic)
P0441 2002 TOYOTA HIGHLANDER Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Possible a noticeable fuel odor caused by the release of fuel vapors
P0441 2002 TOYOTA HIGHLANDER MeaningThe Engine Control Module (ECM) tests the Evaporative Emission (EVAP) system for the following conditions:
- Large and small leaks
- Excess vacuum
- Purge flow during non-commanded conditions
- Fuel Level and Fuel Pressure sensor faults
- EVAP Purge and Vent Valve faults
The ECM monitors the Fuel Tank Pressure sensor in order to determine the level of vacuum/pressure in the EVAP system. The ECM commands both the EVAP Purge Solenoid and the EVAP Vent Valve ON when the conditions are met in order to apply an engine vacuum to the EVAP system. The ECM commands the EVAP Purge Solenoid OFF once the system has reached a predetermined level of vacuum. This test verifies if a vacuum can be achieved in the EVAP system. Failure to develop a vacuum may be caused by a large leak or a restriction.
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