OBD-II Code Decoder

Search the licensed P, B, C, and U reference library by code, definition, system, or manufacturer. Reference-only results are not a complete diagnosis.

  • 12,128 OBD-II codes
  • 18,805 reference definitions
  • 16,185 publicly searchable across 10,181 codes

Review-withheld definitions are excluded; lookup records are not published diagnostic pages.

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P0441 — vehicles with official records naming this code

P0441 is named in NHTSA-published manufacturer communications or investigations for 37 vehicle families, including:

A code named in a manufacturer communication means the document refers to it for those vehicles. It is not a diagnosis of any car, and it does not mean the code is common on that vehicle.

Matching definitions: 2 · Unique codes: 1.

Code Meaning System Scope Manufacturer Severity
P0441 EVAP System Incorrect Purge Flow Engine & drivability Generic Not manufacturer-specific Not classified
P0441 Missing fuel cap, Stuck open or closed purge valve, Defective or damaged fuel cap, Distorted damaged or cracked Fuel Tank Filler Neck, Torn or punctured Evaporative system hose(s), Defective Fuel Tank Sending Unit gasket or seal, Split or damaged Carbon Canister, Defective Evaporative Vent Valve, Defective or damaged fuel tank Powertrain Manufacturer-specific Audi Not classified