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Home >> Pontiac >> 1999 >> Firebird V8-5.7L VIN G >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data Definitions - Powertrain Systems >> EVAP Canister Purge
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EVAP Canister Purge

The scan tool displays a range of 0%-100%. The PCM commands the PWM duty cycle of the EVAP Purge Solenoid valve. 0% displayed indicates no purge; 100% displayed indicates full purge.
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