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Home >> Saturn >> 2007 >> Outlook XR, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - DTC P0340 To DTC P2138 >> DTC P0446 >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON and fuel cap removed, verify that the FTP sensor parameter is between 1.3-1.7 volts.
  2. Install the fuel cap.
  3. With the engine running, the EVAP canister vent solenoid valve open and the EVAP canister purge solenoid valve commanded to 100 percent, the fuel tank vacuum should not increase to more than 12 inches H2O.
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