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Home >> Cadillac >> 2010 >> STS 3.6 V, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Engine Controls And Fuel - 4.6L (LH2) - DTC P0335 To DTC P2544) >> DTC P0451-P0454 >> Circuit/System Verification

Circuit/System Verification

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  1. Remove the fuel cap.
  2. Ignition ON, engine OFF, observe the Fuel Tank Pressure Sensor parameter with a scan tool.
  3. The FTP Sensor parameter should be 1.3-1.7V.
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