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P0451 Diagnostic Trouble Code Discussion for March 2013

Fuel Tank Pressure Sensor Performance

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Trouble Ticket Help Requests for DTC P0451
Help Request Posted
2003 Porsche Boxster Roadster 2.7L MIL Lamp on VIN: WP0CA29883
P0451: fuel tank presuure sensor signal implausible. I have a pid for pressure that seems to be reacting correctly when I pressurize and de-pressurize the system although it never drops completely to zero but I can't actually find the pressure sensor on this system. Alldata does not display a location and my vis...
March 01, 2013