Possible causes – Faulty Evaporative Emission System (EVAP) Vapor Pressure Sensor– Evaporative Emission System (EVAP) Vapor Pressure Sensor harness is open or shorted– Evaporative Emission System (EVAP) Vapor Pressure Sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) Tech description There is factory service bulletin for the following Toyota models: 2003-2004 Toyota 4Runner2003-2004 Toyota…