7. Connect the hose extending from the flowmeter connection
l
abeled “IN”, to the other end of the adapter (Fig. 36).
8. Install the second FST connection adapter to the fuel line running
to the fuel rail. If the fuel line connection used by the vehicle man-
ufacturer is a 3/8” quick-connect style (SAE J2044), a second
adapter is not required.
9. Connect the hose extending from the flowmeter connection
labeled “OUT”, to the other end of the adapter or directly to the
fuel line running to the fuel rail, depending on the type of connec-
tion (Fig. 37).
10. Before proceeding:
Double check the connections. The tester should be installed
such that the fuel flowing from the tank to the engine enters the
FST through the port labeled “IN”, out of the tester through the
port labeled “OUT”, and on to the fuel rail.
Route and secure the clear pressure relief and bypass hoses into
an approved gasoline container
Route the flowmeter inlet and outlet fuel hoses away from rotating
engine components, belts, fans, and hot exhaust components
Remove the fuel spillage rags
Reconnect components such as PCV tubes, wiring harnesses,
vacuum tubes, etc., that were disconnected to gain access to the
fuel line connection.
Check the operating position of the flow control valve on the side
of the flowmeter. Ensure it is in the OPEN position pointing down
(Fig. 38).
11. Re-enable the fuel pump (if previously disabled), and cycle the
ignition switch to the ON position for a brief time, and then back
OFF. Do not start the engine.
On most vehicles, cycling the ignition ON and OFF will allow the
fuel pump to run briefly, and prime the tester. After cycling the
ignition, check all fuel connections for leaks. If all fitting connec-
tions are secure, the installation is complete and the FST Pro is
ready to be used for diagnostic tests.
Form 824127 Page Number - 21
Fig. 36
Fig. 38
Fig. 37
