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Chevrolet
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2002
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Impala Base, 3.4 E
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System Self-Diagnostics - 3.4L
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Diagnostic Tests
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DTC P1441: EVAP System Flow During Non-Purge
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Test Description
Test Description
The number below refers to the step number on the diagnostic procedure.
4
This test determines if the EVAP canister purge valve can seal.