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1999 Porsche 911 Carrera 3.4L MIL on
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...
FIX posted 11/10/2009
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Message Closed w/FIX
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Related Documents & Media | VIN | WPOAA2998X |
| Engine | 3.4 L / 6 cyl / GAS |
| Trans | 6-speed Standard |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL On |
| Occurs | Intermittently |
Trouble Codes
| P0446 | EVAP Vent Control System Performance |
Message Closed w/FIX
Vehicle Data
1999 Porsche 911 Carrera
| VIN | WPOAA2998X |
| Engine | 3.4 L / 6 cyl / GAS |
| Trans | 6-speed Standard |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL On |
| Occurs | Intermittently |
Trouble Codes
| P0446 | EVAP Vent Control System Performance |
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