Bosch J 41413-200 Operación Manual página 9

Flowmeter Test contd.
4. Position the red flag on the flowmeter to align with the floating indicator. See Figure 4. When the
red flag is set, press and release the remote switch to deactivate the tester.
5. Remove the hose from the test orifice, and install the hose onto the vehicle. For the correct
connection location and special tool part numbers for any adapters that may be required, refer
to the service manual for the vehicle being tested. The vehicle-specific information can be found
in service procedures for DTCs that relate to evaporative emission (EVAP) system leaks.
6. Seal the EVAP system according to instructions in the vehicle service manual. Most systems
can be sealed using a scan tool output control for the EVAP canister vent solenoid valve. Other
systems require that the system be plugged. For specific instructions, refer to the service manual
for the vehicle being tested. The evaporative system should now be sealed and ready to be
tested.
7. Press and release the remote switch to activate the nitrogen flow and fill the system. Watch the
flowmeter's indicator until it stabilizes (stops dropping).
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.
•
Static buildup may cause the float indicator to stick. It may be necessary to tap on the
flowmeter to free up the float.
Operating Instructions
Red flag
aligned
with floating
indicator.
Figure 4
7