Fuel Tank Inspection: AWD
- Perform the following procedure to verify the fuel tank airtightness.
- Plug the fuel pump unit pipe, ports B and C.
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- Apply a pressure of 3 kPa {23 mmHg, 0.9 inHg} to port A and wait for a while.
- Verify that there is no air flow leakage from the fuel tank.
- Plug the fuel pump unit pipe and port B.
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- Level the fuel tank.
- Apply a pressure of 3 kPa {23 mmHg, 0.9 inHg} to port A and wait for a while.
- With the pressure still applied, verify that there is air flow from port C and the pressure is 0-3 kPa {0-23 mmHg, 0-0.9 inHg}.
- Apply a pressure of -0.5 kPa {-3.8 mmHg, -0.1 inHg} to port A and wait for a while.
- With the pressure still applied, verify that there is air flow from port C and the pressure is -0.5-0 kPa {-3.8-0 mmHg, -0.1-0 inHg}.
- Apply a pressure to port A and wait for a while.
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- With the pressure still applied, verify that there is no air flow from port C.