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GM - MODE 6 - EVAP
Iam using the vehicle to test its self for evap system leak. Vent valve closed, watching fuel pressure sensor voltage on scan tool, I ground the purge valve and wait untill FTP reaches 4.5 volt then unground purge valve. My question is what vacuum decay is acc... Login to read more. 
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| Engine | 3.1 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
2000 Buick Century Limited 3.1L
| Engine | 3.1 L |
| Trans | 4-speed Automatic (Electronic) |
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