Category Archives: Nissan


3 Causes and Fixes Nissan P0456 Code

If you have a Nissan and it is giving a P0456 error code, the onboard computer (ECM) is seeing a problem with the EVAP system. The official definition of a Nissan P0456 error is a “Small Leak Detected in the EVAP System.” Often related codes also are given, such as a P0448 (Vent Control Valve)… Read More »