Fuel system basic procedure
6-2
c. Disconnect the quick connector “1”
from the fuel pipe “b” directly.
Cover the quick connector and fuel pipe with
a plastic bag to prevent damage and to pre-
vent dirt from entering them.
Measuring the fuel pressure
1. Connect the YDIS to display “DI fuel pres-
sure P”, “DI fuel pressure S” and “VST fuel
pressure”.
2. Measure:
•Fuel pressure
a. Start the engine and warm it up until
the engine idle speed stabilizes at the
specified engine idle speed range.
b. Measure the fuel pressure.
Idle speed (in neutral)
650–750 r/min
Fuel pressure at idle speed (high-
pressure fuel pump)
330-400 kPa (3.3-4.0 kgf/cm²,
47.9-58.0 psi)
Fuel pressure at idle speed (DI
pump)
8.00 Mpa (80.0 kgf/cm², 1160.0
psi)
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