# Service bulletin 01\-024\-12\-2729

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10097863
- Published by NHTSA: 2017\-04\-25
- Manufacturer's number: 01\-024\-12\-2729
- Manufacturer's date: 2012\-11\-01
- NHTSA component: FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP; ENGINE

## NHTSA's 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 \(FUEL PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM\) STORED IN THE PCM MEMORY. • THE ENGINE MAY STALL DURING STOP AFTER IDLING FOR A LONG TIME, AND MAY NOT RESTART FOR A CERTAIN PERIOD OF TIME.

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Engine, Fuel system, Fuel pump

## Trouble codes named

P0191

## Vehicles listed

- 2012 MAZDA MAZDA3

## Other bulletins for the same vehicles and component

- [01\-024\-12\-2729A](/bulletins/10097861.md), 2017-04-25, Service bulletin: FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP; ENGINE. 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 \(FUEL PRESSURE SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM\) STORED IN THE PCM MEMORY. • THE ENGINE MAY STALL DURING STOP AFTER IDLING FOR A LONG TIME, AND MAY NOT RESTART FOR A CERTAIN PERIOD OF TIME.
- [01\-010\-14](/bulletins/10061500.md), 2016-04-12, Service bulletin: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
- [SB\-01\-010\-14](/bulletins/10056055.md), 2014-08-26, Service bulletin: FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. MAZDA: DUE TO HIGH PRESSURE FUEL PUMP NOT GENERATING TARGET FUEL PRESSURE, CAUSED BY MANUFACTURING ERROR, THE CHECK ENGINE LIGHT COMES ON. MODEL 2012\-2014. \*PE

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