GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Optra - Mexico 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Fuel Pressure Relief
  1. Remove the fuel cap.
  2. Remove the fuel pump fuse EF10 from the engine fuse box.
  3. Start the engine and allow the engine to stall.
  4. Crank the engine for an additional 10 seconds.