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EC-774 < DTC/CIRCUIT DIAGNOSIS > [VK56DE] P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR 7. Start engine and wait at least 100 seconds. NOTE: Do not depress accelerator pedal even slightly. 8. Check 1st trip DTC. If 1st trip DTC is not detected, go to the next step. 10. Turn ignition switch OFF and wait at least 10 seconds. NOTE: Do not depress accelerator pedal even slightly. 14. Check 1st trip DTC. If 1st trip DTC is not detected, go to the next step. 16. Turn ignition switch OFF and wait at least 10 seconds. NOTE: Do not depress accelerator pedal even slightly. 20. Check 1st trip DTC. If 1st trip DTC is not detected, go to the next step. 22. Turn ignition switch OFF and wait at least 10 seconds. NOTE: Do not depress accelerator pedal even slightly. 26. Check 1st trip DTC. Diagnosis Procedure INFOID:0000000006244421 1. CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. 2. Loosen and retighten ground screws on the body. OK or NG OK >> GO TO 2. NG >> Repair or replace ground connections. 2. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR FOR WATER BBIA0539E 2011 Pathfinder |