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3-20 FUEL SYSTEM (DFI)
DFI Servicing Precautions
For JT1500-A2 ∼;
○
Install the double spring clamp in the position as shown,
and securely pull up the clamp stopper with pliers. Check
the fuel system for l eaks after hose installation.
Fuel Hose [B]
Double Spring Clamp [A]
Fuel Pipe [C]
CAUTION
Do not reuse the double spring clamps on the fuel
line. Reusing will cause fuel leakage.
Replace the double spring clamps with new ones.
○
Replace the fuel hose if it has been sharply bent or kinked.
○
The high pressure inside the fuel line can cause fuel to
leak [A] or the hose to burst. Bend and twist the fuel hose
while examining it.
○
Replace the hose if any cracks [B] or bulges [C] are no-
ticed.
○
When checking the DFI parts, do not run the engine for
15 seconds or more without auxiliary cooling (see General
Information chapter).
CAUTION
If running the engine without the auxiliary cooling
for 15 seconds or more (even at idle speed), the rub-
ber component relative to the Exhaust System may
be damaged.
○
Execute the auxiliary cooling securely in case that fre-
quent engine running is required.
•
When checking the DFI parts, use a digital meter w hich
can be read two decimal place voltage or resistance.
○
The DFI part connectors have seals, including the ECU.
When measuring the input or output voltage with the
connector joined, use the needle adapter set. Insert the
needle adapter inside the seal until the needle adapter
reaches the terminal.
Digital Meter [A]
Special Tool - Needle Adapter Set: 57001-1457
CAUTION
Insert the needle adapter straight along the terminal
in the connector to prevent short-circuit between
terminals.