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P0451 Diagnostic Trouble Code Discussion for May 2011

Fuel Tank Pressure Sensor Performance

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Trouble Ticket Help Requests for DTC P0451
Help Request Posted
2006 Ford Mustang GT 4.6L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Poor Fuel Economy, MIL Lamp on VIN: 1ZVFT82H16
P0451: evac. ... black smoking, hesitation, CEL with P0451 and P0191, the car won't rev past 3000-3500 if full throttle is applied, if half throttle is applied it will go to the rev limiter. Fuel pressure reads very low with a handheld programmer usually 3-4 PSI which is c...
May 09, 2011