GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Optra - Mexico 🢒 Engine 🢒 Engine Controls and Fuel - 2.0L (L34 GMDAT) 🢒 Fuel Pressure Relief

    Warning: Refer to Relieving Fuel Pressure Warning in the Preface section.

  1. Remove the fuel cap.
  2. Remove the fuel pump fuse EF18 from the engine fuse box.
  3. Start the engine and allow the engine to stall.
  4. Crank the engine for an additional 10 seconds.