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.
Review-withheld definitions are excluded; lookup records are not published diagnostic pages.
P0303 — vehicles with official records naming this code
P0303 is named in NHTSA-published manufacturer communications or investigations for 78 vehicle families, including:
- Kia Forte model years 2017-2019 · 12 records
- Chevrolet Tahoe model years 2007-2008, 2010-2013, 2021 · 10 records
- Ford Focus model years 2000-2001, 2003-2006 · 10 records
- Ford GT model years 2017-2022 · 10 records
- GMC Yukon model years 2007-2008, 2010-2013, 2021 · 10 records
- Cadillac Escalade model years 2007-2008, 2010-2013, 2021 · 9 records
- Chevrolet Suburban model years 2007-2008, 2010-2013, 2021 · 9 records
- Genesis G80 model years 2021-2024 · 8 records
- Genesis GV70 model years 2022-2025 · 8 records
- Genesis GV80 model years 2021-2024 · 8 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: 2 · Unique codes: 1.
| Code | Meaning | System | Scope | Manufacturer | Severity |
|---|---|---|---|---|---|
| P0303 | Cylinder 3 Misfire Detected | Engine & drivability | Generic | Not manufacturer-specific | Not classified |
| P0303 | Worn out spark plugs, ignition wires, coil(s), distributor cap and rotor (when applicable), Incorrect ignition timing, Vacuum leak(s), Low or weak fuel pressure, Improperly functioning EGR system, Defective Mass Air Flow Sensor, Defective Crankshaft and or Camshaft Sensor, Defective Throttle Position Sensor, Mechanical engine problems (i.e.—low compression, leaking head gasket(s), or valve problems) | Powertrain | Manufacturer-specific | Audi | Not classified |
No matching codes
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