Top 30 Searched OBDII Engine Codes

  • 1. P1273 NISSAN   
    1,728,787 Views
    Air Fuel Ratio Sensor 1 Bank 1 Lean Shift Monitoring
  • 2. P0420 NISSAN   
    626,382 Views
    Catalyst System Efficiency Below Threshold Bank 1
  • 3. P0420      
    540,980 Views
    Catalyst System Efficiency Below Threshold Bank 1
  • 4. P0300 CHEVROLET   
    529,275 Views
    Cylinder Misfire Detected Random Cylinders
  • 5. P0420 TOYOTA      
    477,785 Views
    Catalyst System Efficiency Below Threshold Bank 1
  • 6. P0171 CHEVROLET   
    465,477 Views
    Fuel Trim System Lean Bank 1
  • 7. P0171 TOYOTA   
    462,123 Views
    Air/Fuel Mixture System Lean Bank 1
  • 8. P0430      
    439,675 Views
    Catalyst System Efficiency Below Threshold Bank 2
  • 9. P0455 FORD      
    428,726 Views
    Evaporative Emission Control System Leak Detected Gross Leak
  • 10. P0340 NISSAN      
    421,323 Views
    Camshaft Position Sensor Circuit Bank 1
  • 11. P0171
    410,268 Views
    System Too Lean Bank 1
  • 12. P0300
    405,630 Views
    Cylinder Misfire Detected Random Cylinders
  • 13. P0340   
    398,912 Views
    Camshaft Position Sensor 'A' Circuit Malfunction
  • 14. U1000 NISSAN
    392,992 Views
    CAN Communication Line - Signal Malfunction
  • 15. P0011 NISSAN   
    388,646 Views
    Intake Valve Timing Control Performance Bank 1
  • 16. P0171 FORD   
    364,479 Views
    Fuel Injection System Too Lean Bank 1
  • 17. P1320 NISSAN   
    362,714 Views
    Ignition Signal
  • 18. P0420 HONDA   
    328,830 Views
    Catalyst System Efficiency Below Threshold Bank 1
  • 19. P0455 NISSAN      
    322,811 Views
    EVAP Control System Gross Leak Detected
  • 20. P0300 NISSAN
    317,859 Views
    Cylinder Misfire Detected Random Cylinders
  • 21. P1345 CHEVROLET   
    312,915 Views
    Crankshaft Position-Camshaft Position Correlation
  • 22. P0455 CHEVROLET   
    301,040 Views
    Evaporative Emission Control System Leak Detected Gross Leak
  • 23. P0455   
    295,568 Views
    Evaporative Emission Control System Leak Detected Gross Leak
  • 24. P1456 HONDA   
    292,022 Views
    Evaporative Emissions Control System Leakage Fuel Tank
  • 25. P1000 FORD
    291,021 Views
    On Board Diagnostic System Readiness Test Not Complete
  • 26. P0446 TOYOTA   
    286,740 Views
    EVAP System Vent Control Circuit
  • 27. P1259 HONDA   
    284,912 Views
    VTEC System Malfunction
  • 28. P0303
    277,016 Views
    Cylinder 3 Misfire Detected
  • 29. P1450 FORD   
    249,213 Views
    Unable to Bleed Up Bleed Fuel Tank Vacuum
  • 30. P1457 HONDA   
    246,569 Views
    Evaporative Emissions Control System Leakage EVAP Canister System