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P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR EC-253 < COMPONENT DIAGNOSIS > [VQ40DE] C D E F G H I J K L M A EC N P O P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR Component Description INFOID:0000000001376232 The EVAP control system pressure sensor (2) detects pressure in : Vehicle front On Board Diagnosis Logic INFOID:0000000001376234 If DTC P0451 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to . DTC Confirmation Procedure INFOID:0000000001376235 1. If DTC Confirmation Procedure has been previously conducted, always perform the following before con- a. Turn ignition switch OFF and wait at least 10 seconds. b. Turn ignition switch ON. c. Turn ignition switch OFF and wait at least 10 seconds. 2. Start engine and wait at least 40 seconds. 3. Check 1st trip DTC. 4. If 1st trip DTC is detected, go to Diagnosis Procedure INFOID:0000000001376236 1. CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. AWBIA0134ZZ PBIB1207E DTC No. Trouble diagnosis name DTC detecting condition Possible cause P0451 EVAP control system ECM detects a sloshing signal from the EVAP • Harness or connectors |