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FUEL SYSTEM (DFI) 3-85
Fuel Injectors
•
Check the injector fuel line for leakage as follows:
○
Connect a commercially available vacuum/pressure
pump [A] to the nipple of the delivery pipe [B] with a
high-pressure fuel hose [C] (both ends connected with
the clamps [D]) as shown.
Torque - Fuel Hose Clamp Screws: 1.5 N·m (0. 15 kgf·m, 13
in·lb)
○
Apply soap and water solution to t he areas [E] as shown.
○
Watching the pressure gauge, squeeze the pump lever
[F], and build up the pressure until the pressure reaches
the maximum pressure.
Injector Fuel Line M aximum Pressure
Standard: 300 kPa (3.06 kgf/cm², 43 psi)
CAUTION
During pressure testing, do not exceed the maxi-
mum pressure for which the system is designed.
•
Watch the gauge for at least 6 seconds.
If the pressure holds steady, the system is good.
If the pressure drops at once or if bubbles are found in
the area, the line is l eaking. Replace the delivery pipe,
injectors and related parts.
○
Repeat the leak test, and check the fuel line for no leak-
age.
•
Install the pump outlet hose (see Fuel Tank Installation).
•
Run the hoses correctly (see Cable, Wire, and Hose Rout-
ing section in Appendix chapter).