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Service bulletin DTC P0451

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10076912
Published by NHTSA2016-07-14
Manufacturer's numberDTC P0451
Manufacturer's date2016-02-04
NHTSA componentEQUIPMENT; FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY

NHTSA's summary

MIL ON WITH DTC P0451 AND/OR P013A SOME CUSTOMERS MAY COMPLAIN ABOUT A MIL ON WITH DTC P0451 (FUEL TANK PRESSURE SENSOR: SENSOR CHARACTERISTIC MALFUNCTION) AND/OR P013A HO25S: SLOW RESPONSE (DURING TRANSITION FROM RICH TO LEAN)). RECALL 8615j REPAIR PROCEDURE MAY CORRECT THIS CONCERN.

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

Equipment and accessories, Fuel system, Fuel tank

Trouble codes named

P013A, P0451

Vehicles listed
MAZDA UNKNOWN

Listing a model year does not mean every vehicle of it is concerned: the document says which.