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P1450 Diagnostic Trouble Code Discussion for November 2009

Barometric Pressure Sensor Circuit Malfunction

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Trouble Ticket Help Requests for DTC P1450
Help Request Posted
1997 Mercury Mountaineer 5.0L MIL Lamp on VIN: 4N2DU55P9V
P1450: unable to bleed up vaccum from tank. code p1450 will reset after about 2 weeks, i monitor fuel tank pressure and can watch the voltage drop to around .39 volts after about a mile of driving, i put my low amp probe on the vmv and watch the ecm commanding vacuum to the tank, i can watch the voltage...
November 24, 2009