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P0450 Diagnostic Trouble Code Discussion for May 2009

EVAP System Pressure Sensor Circuit Malfunction

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Trouble Ticket Help Requests for DTC P0450
Help Request Posted
2000 Nissan Xterra SE 3.3L MIL Lamp on VIN: 5N1ED28T8Y
P0450: EVAP Pressure Sensor Circuit Malfunction. truck has code p0450, checked evap system for leaks found none, all siliniod valves are working including the one on the cannister. pressure sensor has 5v refrence and goes up from 3.5v (signal wire)as pressure is added, seems to be an intermitant problem, hop...
May 18, 2009
2002 Volvo S40 1.9L Poor Idle Quality, MIL Lamp on, Blk smoke warm start VIN: YV1VS29SX2
P0450: Evap system Leak Detection Pump - part on order - set MIL. VOLVO TECHS: Briefly as possible: Problem of concern is after a hot soak of only a few minutes vehicle WAS at first VERY hard to restart without applying throttle. Noted sulfur smell. Tested vacuum good and steady - no fuel apparent at any time so far at Press...
May 29, 2009