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P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR EC-313 < DTC/CIRCUIT DIAGNOSIS > [VK56DE] 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:0000000009886722 The EVAP control system pressure sensor (2) detects pressure in the purge line. The sensor output voltage to the ECM increases as pressure increases. On Board Diagnosis Logic INFOID:0000000009886723 NOTE: If DTC P0451 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to . DTC Confirmation Procedure INFOID:0000000009886724 NOTE: Never remove fuel filler cap during DTC confirmation procedure. 1. PRECONDITIONING If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test. 1. Turn ignition switch OFF and wait at least 10 seconds. 2. Turn ignition switch ON. 3. Turn ignition switch OFF and wait at least 10 seconds. With CONSULT>>GO TO 2. 2. PERFORM DTC CONFIRMATION PROCEDURE-1 With CONSULT 1. Start engine and let it idle for least 40 seconds. 1 : Drain filter 3 : EVAP canister 4 : EVAP canister vent control value ALBIA0401ZZ PBIB1207E DTC No. Trouble diagnosis name DTC detecting condition Possible cause P0451 EVAP control system pressure ECM detects a sloshing signal from the • Harness or connectors |