Honda reports 2006-2011 Civic models except Si and GX may exhibit an MIL with DTC P2422 (EVAP canister vent shut valve stuck closed malfunction).
In the following case study, we aim to give a good overview of how you can get started diagnosing real-world EVAP problems. In the future, we will cover more advanced EVAP problems.
This applies to all Toyota vehicles with Key Off EVAP systems, where DTCs P0456, P0455 & P0441; or P043E, P043F, P2401, P2402 or P2419 are present.
The MIL illuminates with DTC P2422 (EVAP canister vent shut valve close malfunction) on 2008-2009 Honda Accord models.
The 2011 Accord L4 four-door, from VIN 1HGCP2…BA033985 through 1HGCP2…BA056601; and 2011 Accord L4 two-door, from VIN 1HGCS1…BA004581 through 1HGCS1…BA007349, may have one or more of the following symptoms:
This TSB applies to all 2006-2011 Honda Civics (except Si and GX). The MIL is on with DTC P2422 stored (EVAP canister vent shut valve stuck closed malfunction). The likely cause is spider webs that are clogging the EVAP canister vent tube.
The following diagnosis might be helpful if the vehicle exhibits a P0442 DTC, but a system leak cannot be verified through system testing instructions listed in the service manual. The difficulty in determining the cause of the EVAP leak results in improper repairs and customers returning for the same issue.
This bulletin involves DTC P0456 on 2007-2008 Ford E-150, E-250, E-350 and Expedition F-150; and 2007-2008 Lincoln Mark LT and Navigator.
This TSB from Infiniti applies to 1998 and later Infiniti vehicles with EVAP service port. If one or more DTCs listed below (related to EVAP system leaks) is found stored in Self Diagnosis, use the Repair Flow Chart shown here. The involved DTCs include: P0440, P0442, P0455, P0456 and P1456.
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