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3-126 FUEL SYSTEM (DFI)
Fuel Injectors
•
Check the fuel injector fuel line for leakage as follows.
Connect a commercially available vacuum/pressure
pump [A] to the nipple of the delivery pipe [B] with the
fuel hose [C] (both ends with the clamps [D]) as shown.
Rear Side View [E]
Apply soap and water solution to the areas [F] as shown.
Watching the pressure gauge, squeeze the pump lever
[G], and build up the pressure until the pressure reaches
the maximum pressure.
Injector Fuel Line Maximum Pressure
Standard: 300 kPa (3.06 kgf/cm², 43 psi)
NOTICE
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 fuel line is good.
If the pressure drops at once or if bubbles are found in the
area, the fuel line is leaking. Replace the delivery pipe
assy, injectors and related parts.
Repeat the leak test, and check the fuel line for no leak-
age.
•
Install:
Fuel Hose (see Fuel Hose Replacement in the Periodic
Maintenance chapter)
Fuel Tank (see Fuel Tank Installation)
•
Start the engine and check for fuel leakage.
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