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1999 Porsche 911 Carrera 3.4L MIL on
Posted to European Driveability on 10/2/2009 5 Replies

We have run into this code before (PO446) and a canister shut off valve takes care of the problem. This one has decided to buck the system. So we have run extensive tests on every component and tube ETC. The pressure sensor checks OK..the valve is new and work...

5 Replies Received (View Replies)

  Related Documents & Media  1999 Porsche 911 Carrera

 
Message Closed w/FIX

car Vehicle Data

1999 Porsche 911 Carrera

VIN WPOAA2998X
Engine3.4 L / 6 cyl / GAS
Trans6-speed Standard
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL On
OccursIntermittently

Trouble Codes

P0446EVAP Vent Control System Performance
Message Closed w/FIX

car Vehicle Data

1999 Porsche 911 Carrera

VIN WPOAA2998X
Engine3.4 L / 6 cyl / GAS
Trans6-speed Standard
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL On
OccursIntermittently

Trouble Codes

P0446EVAP Vent Control System Performance