Mazda MAZDA3 2012 — technical service bulletin
Bulletin 01-024-12-2729 · NHTSA communication 10097863 · issued Nov 1, 2012
Technical service bulletin
communication type
Engine
component
2012
model years
1
vehicle entries
Official summary
On certain 2012 mazda3 vehicles, when using high evaporative winter fuel, if the vehicle is stopped and idling for longer than 20 minutes, there is a possibility that the fuel inside the high-pressure fuel pump may be raised to a higher temperature than usual. If the fuel temperature is higher than the fuel vapor temperature, the fuel supply to the injector may be insufficient and potentially cause one of the following conditions: the vehicle may experience rough idle and/or the malfunction indicator light (mil) may illuminate with dtc p0191:00 (fuel pressure sensor circuit range/performance p
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.