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Home >> Chevrolet >> 2006 >> Impala LS, 3.5 N >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 3.5L - DTC P0442 To DTC P2A01 >> DTC P0496 >> Circuit/System Verification
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Circuit/System Verification

  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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