There are 4 stored owner reports matching the fuel system leading-label group for the 2014 Mazda Mazda6 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 4 of 4 matching reports.
Open the full vehicle complaint log (all categories)My 2014 mazda 6 EVAP system pops the p0451 when filling up gas to the first click. It goes away after a while if I take care to not fill up the tank all the way to the top. It is similar to a issue reported by recall 7414D for other 2014 mazda 6s. My car is not covered by the open recall, but it is experiencing similar issues. The p0451 goes on and off depending on how much i fill up the gastank.
The contact owns a 2014 Mazda Mazda6. The contact stated that while parked, there was a strong fuel odor coming from the vehicle. In addition, there was fuel leaking from the rear of the vehicle. The vehicle was taken to the dealer where it was diagnosed that the fuel pump needed to be replaced. The vehicle was not repaired. The VIN was not included in NHTSA Campaign Number: 14V170000 (FUEL SYSTEM, GASOLINE). The manufacturer was not notified of the failure. The failure mileage was 144,000.
The contact owns a 2014 Mazda Mazda6. The contact stated that on multiple occasions, the vehicle would stall upon the depression of the accelerator pedal as a fuel odor would emit from the vehicle. The check engine light would also appear on the instrument panel. The vehicle had been taken to an independent mechanic who replaced the fuel line O-ring seal on three separate occasions. The manufacturer nor the dealer had been notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 40,000.
TL* THE CONTACT OWNS A 2014 MAZDA 6. WHILE STANDING OUTSIDE OF THE VEHICLE, THE CONTACT DETECTED AN ABNORMAL FUEL ODOR. THE ODOR WAS NOT PRESENT INSIDE THE VEHICLE. THE CONTACT ALSO STATED THAT THE FUEL ECONOMY WAS DIMINISHED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC TO BE INSPECTED; HOWEVER, THE MECHANIC WAS UNABLE TO PINPOINT THE SOURCE OF THE FUEL ODOR. THE VEHICLE WAS SUBSEQUENTLY TAKEN TO ROMANO MAZDA (LOCATED AT 3120 ERIE BLVD E, SYRACUSE, NY 13214, (315) 446-9666) WHERE IT WAS DETERMINED THAT THE FUEL ODOR WAS DUE TO CORROSION BETWEEN THE FUEL TANK AND FUEL PUMP CONNECTION POINT. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS INFORMED OF THE FAILURE. THE CONTACT WAS REFERRED TO NHTSA BY THE MANUFACTURER. ADDITIONALLY, THE CONTACT WAS INFORMED THAT THE VEHICLE WAS NO LONGER UNDER WARRANTY AND THERE WOULD BE NO ADDITIONAL ASSISTANCE. THE APPROXIMATE FAILURE MILEAGE WAS 67,000.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.