Mazda MX-5 Miata Sport 2007 Manual page 1362

Fig. 19: Identifying Plug
Courtesy of MAZDA MOTORS CORP.
7. Level the fuel tank.
8. Apply a pressure of 3 kPa {23 mmHg, 0.9 inHg} to port C and wait for a while.
9. With the pressure still applied, verify that there is airflow from port A and the pressure is 0- 3 kPa {0-22
mmHg, 0- 0.8 inHg} .
If there is no airflow, replace the fuel tank.
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10. Apply a pressure of -0.5 kPa {-3.8 mmHg, -0.1 inHg} to port C and wait for a while.
11. With the pressure still applied, verify that there is airflow from port A and the pressure is -0.5- 0 kPa {-
3.8- 0 mmHg, -0.2- 0 inHg} .
If there is no airflow, replace the fuel tank.
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If there is airflow, place the fuel tank upside down.
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12. Apply a pressure of 3 kPa {23 mmHg, 0.9 inHg} to port C and wait for a while.
13. With the pressure still applied, verify that there is no airflow from port A.
If there is airflow, replace the fuel tank.
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NON-RETURN VALVE INSPECTION [LF]
WARNING:
2007 Mazda MX-5 Miata Sport
2007 ENGINE Fuel System - MX-5 Miata
Fuel is very flammable liquid. If fuel spills or leaks from the
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