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Home >> Cadillac >> 2017 >> CT6 Plug-In >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 2.0L (LTG) - Repair Instructions >> Repair Instructions >> Fuel Pressure Relief >> Scan Tool Method - Preferred

Scan Tool Method - Preferred

  1. Install a scan tool and turn the ignition ON.
  2. Using the scan tool, command the fuel pump OFF allowing the low pressure fuel pump to shut off.
  3. Start the vehicle and allow the engine to idle until the engine stops. The engine will stop in approximately 5-20 seconds.
  4. Repeat step 3. Using the scan tool, verify pressure has dropped to a minimal level.
  5. Turn the ignition OFF.
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