CarFaultIQ

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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P0492 — vehicles with official records naming this code

P0492 is named in NHTSA-published manufacturer communications or investigations for 6 vehicle families, including:

  • Audi A6 model years 2009-2011 · 12 records
  • Audi Q5 model years 2009-2012 · 11 records
  • Audi A4 model years 2009-2011 · 10 records
  • Audi Q7 model years 2011-2015 · 7 records
  • Audi R8 model years 2009-2011 · 3 records
  • Audi S6 model years 2009-2011 · 3 records

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: 1 · Unique codes: 1.

Code Meaning System Scope Manufacturer Severity
P0492 AIR System Insufficient Flow Bank 2 Powertrain Generic Not manufacturer-specific Not classified