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DTC P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR EC-373 < SERVICE INFORMATION > [VQ35DE] C D E F G H I J K L M A EC N P O Diagnosis Procedure INFOID:0000000001326203 1. CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. 2. Loosen and retighten ground screw on the body. Refer to OK or NG OK >> GO TO 2. NG >> Repair or replace ground connections. 2. CHECK EVPA CONTROL SYSTEM PRESSURE SENSOR CONNECTOR FOR WATER 1. Disconnect EVAP control system pressure sensor harness connector. 2. Check sensor harness connector for water. OK or NG OK >> GO TO 3. NG >> Repair or replace harness connector. 3. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR EC-373, "Component Inspection" OK or NG OK >> GO TO 4. NG >> Replace EVAP control system pressure sensor. 4. CHECK INTERMITTENT INCIDENT For Wiring Diagram, refer to . >> INSPECTION END Component Inspection INFOID:0000000001326204 EVAP CONTROL SYSTEM PRESSURE SENSOR 1. Remove EVAP control system pressure sensor with its harness connector connected from EVAP canister. 2. Install a vacuum pump to EVAP control system pressure sensor. PBIB2625E Water should not exist. PBIB1611E |