Pressurization Test

If the pressure regulator is replaced, perform the calibration referring to Output pressure calibration  in these instructions.

1. Connect the red battery clip from the tester to the positive battery terminal, then connect the black battery clip from the tester to chassis ground.
   NOTE: The vehicle battery must be fully charged for optimum tester performance.
2. Turn the NITROGEN/SMOKE valve (1) on the front control panel to NITROGEN.
   NOTE:

   • Decide which test orifice to use by referring to the table shown below.
     Fig 1: Test Orifice Table

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   • Completely unwind the nitrogen/smoke hose from the bracket to optimize the tester's performance.
3. Connect the nitrogen/smoke hose (2) to the correct test orifice (3) on the bottom-front of the tester.
   Fig 2: Connecting Nitrogen/Smoke Hose To Correct Test Orifice

   Courtesy of SUZUKI OF AMERICA CORP.
4. Press and release the remote switch (4) to activate the tester.
5. Position the red flag (1) on the flow meter to align with the floating indicator (2). When the red flag is set, press and release the remote switch to deactivate the tester.
   Fig 3: Positioning Red Flag On Flow Meter

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6. Disconnect the nitrogen/smoke hose from the test orifice.
7. Connect the nitrogen/smoke hose onto the fuel cap adapter (1).
   Fig 4: Connecting Nitrogen/Smoke Hose Onto Fuel Cap Adapter

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8. Remove fuel cap, then install fuel cap adapter onto the fuel filler neck.
9. Install fuel cap (2) onto the fuel cap adapter.
   NOTE: Connections must be tight and leak-free.
10. Identify the evaporative emission system type of the vehicle under repair referring to Table of Evaporative System Type  .
11. If the system type is A-type, open the tank pressure control valve (1) according to the following procedures.
    1. Disconnect vacuum hose from the tank pressure control valve.
    2. Using a special tool, apply vacuum to the vacuum port on the tank pressure control valve.

    Special tool 

    1. (A):  09917-47910
    Fig 5: Applying Vacuum To Vacuum Port On Tank Pressure Control Valve

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12. If the system type is B-type, open the tank pressure control solenoid valve according to the following procedures.
    1. Confirm the ignition switch it turned OFF.
    2. Using a service wire (2), connect the ECM connector terminal for the pressure control solenoid valve and body ground.
       Fig 6: Connecting The ECM Connector Terminal For Pressure Control Solenoid Valve & Body Ground

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13. Turn the ignition switch ON leaving the engine OFF.
    WARNING: To prevent personal injury and equipment damage, tests with Evaporative Emission System Tester are performed with the engine OFF.
14. Using the scan tool, close the canister vent valve.

    The evaporative emission system should now be sealed and ready to be tested.

    1. Special tool:  SUZUKI scans tool
15. Press and release the remote switch to activate the nitrogen flow and fill the system. Watch the flow meter's indicator until it stabilizes.
    NOTE:

    • The remote switch operates in a push ON, push OFF fashion.
    • Larger volume fuel tanks, and/or those with lower fuel levels, may require several minutes to fill with nitrogen.
16. Compare the stable floating indicator position to the red flag as follows.
    1. If indicator floats above the red flag, the result is UNACCEPTABLE. Locate and repair a leak referring to Evaporative Emission System Smoke Test  .
    2. If indicator floats below the red flag, the result is ACCEPTABLE. Test is completed.
       Fig 7: Comparing Stable Floating Indicator Position To Red Flag

       Courtesy of SUZUKI OF AMERICA CORP.
17. Press and release the remote switch to deactivate the tester.
18. Charge the battery as necessary.