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Leakage Inspection

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform the following SST  (Evaporative Emission System Tester 134-01049) self-test:
    NOTE:
    • If the tester does not work correctly during the self-test, refer to the tester operators manual for more detailed procedures.
    1. Verify that the gas cylinder valve is closed and the control valve located on the tester is in the TEST position.
    2. All tester displays should be off at this time.
    3. Connect the long hose (part of SST  ) to the tester.
    4. Connect the manifold assembly (part of SST  ) to the long hose as shown in Fig 1.
      Fig 1: Connecting Manifold Assembly
      G03637859Courtesy of MAZDA MOTORS CORP.
    5. Open the gas cylinder valve and verify that the left gauge of the gas cylinder regulator reads 10 to 12 psi  (preset at factory).
      • If not, refer to the tester operators manual to contact the tester manufacturer.
    6. Press the ON/OFF switch to turn on the SST  and make sure the left display reads 0.0.
    7. Turn the control valve on the tester to the FILL position.
    8. Verify that the display reading on the left is within 13.9 to 14.0 in  of water.
      • If not, adjust the pressure using the regulator knob located on the right side of the tester.
    9. Turn the control valve to the TEST position and press the START switch.
    10. After the 2-min  countdown (left display) is completed, the right display shows the total pressure loss for that period.0.5 in  of water loss is acceptable on the self-test.
      • If the loss is more than 0.5 in  of water, perform one or more self-tests.
      • If the test position fails repeatedly, check for leakage using the ultrasonic leak detector (part of SST  ).
  2. Press the RESET switch to set the left display reading to 0.0.
  3. Connect the fuel cap receiver assembly (part of SST  ) to the manifold assembly and the fuel-filler cap from the vehicle.
    Fig 2: Connecting Fuel Cap Receiver Assembly
    G03637860Courtesy of MAZDA MOTORS CORP.
    • If the fuel-filler cap is not a genuine part, replace it.
  4. Turn the control valve to the FILL position.
  5. Wait (max.20 s  ) until the left display reads 13.9 to 14.0 in  of water.
    • If the reading is slightly below, adjust it using the regulator knob.
    • If the reading is far below, the fuel-filler cap has leakage. Replace it.
  6. Turn the control valve to the TEST position and press the START switch.
  7. After the 2-min  countdown (left display) is completed, check the test result (the failed/passed light on the tester).
    • If the green light illuminates, the fuel-filler cap is okay.
    • If the red light illuminates, the fuel-filler cap has leakage. Replace it.
  8. Close the gas cylinder valve.
  9. Turn the control valve to the FILL position.
  10. Press the ON/OFF switch to turn off the tester.
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