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Home >> Chevrolet >> 2006 >> Impala SS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Control System - 3.9L - DTC P0442 To DTC P2A01) >> DTC P0496 >> Circuit/System Verification

Circuit/System Verification

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  1. Start the engine.
  2. Seal the EVAP system using the Purge/Seal function with a scan tool.
  3. Observe the FTP sensor with a scan tool. The Fuel Tank Pressure Sensor parameter should be within -1 to +1 inch H2O.
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