Emissions - MIL ON/DTC's P0441/P0442/P0455/P0456 Set

Bulletin No: 01-023/10
Last Issued: 04/16/2010

Subject:
DETERMINING EVAPORATIVE SYSTEM LEAK LOCATION FOR DTCs P0441 /
P0442 / P0455 / P0456





BULLETIN NOTE

APPLICABLE MODEL(S) / VINS

2006-2009 MX-5

2007-2009 CX-7

2004-2009 MAZDA3

2007-2009 MAZDASPEED3

2006-2009 MAZDA5

2003-2008 MAZDA6

2006-2007 MAZDASPEED6

DESCRIPTION

Some vehicles may have a MIL illumination with DTC's P0441, P0442, P0455, or P0456 stored in memory. To determine the location of the evaporative system leak, follow the repair procedure below.

P0441 - Evaporative emission control system incorrect purge flow

P0442 - EVAP system leak detected (small leak)

P0455 - EVAP system leak detected (gross leak)

P0456 - EVAP system leak detected (very small leak)





NOTE:

^ P0441 is a DTC for purge flow, however, it can be stored when evaporative emissions are leaking from the fuel filler cap.

^ Evaporative emissions leak from the fuel filler cap when the cap is not closed properly after refueling.

^ When diagnosing an evaporative emissions leak from the fuel filler cap, DO NOT TOUCH the fuel filler cap.
































REPAIR PROCEDURE





Disclaimer