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Mazda TSB #01-005-19-3548
2016 Mazda MAZDA3
TSB Document:
Affected Component: ENGINE AND ENGINE COOLING
- Summary
- Some vehicles may exhibit the check engine light on with DTC P0456 stored in the PCM memory. P0456: EVAP system leak detected (very small leak). The concern is most likely the result of the customer not getting the fuel cap completely closed after fueling the vehicle. This causes a small fuel vapor leak and turns DTC P0456 on.
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