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9 of these top 10* codes can be diagnosed with a Smoke Wizard®
- P0325: Knock Sensor 1 Circuit Bank 1 or Single Sensor
- P0420: Catalyst System Efficiency Below Threshold Bank 1
- P0300: Random/Multiple Cylinder Misfire Detected
- P0171: System Too Lean Bank 1
- P0401: Exhaust Gas Recirculation Flow Insufficient Detected
- P0174: System Too Lean Bank 2
- P0455: Evaporative Emission System Leak Detected (large leak)
- P0442: Evaporative Emission System Leak Detected (small leak)
- P0301: Cylinder 1 Misfire Detected
- P1456: Manufacturer Specific
* Analysis of 2008 CA Smog Check data
