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Capacity (Volume) Test

  1. Relieve fuel system pressure. See FUEL SYSTEM PRESSURE RELEASE under FUEL PRESSURE  . Disconnect fuel line on fuel rail. Place fuel line into a graduated container.
  2. Remove fuel pump relay (located in power distribution center). Using a jumper wire, connect terminals No. 30 and 87. See Figure . Volume of fuel should be one pint. (.47L) in 30 seconds. If fuel volume is not as specified, check for a plugged fuel filter or fuel pump inlet sock.