Mitsubishi FUEL Manual page 318

13I-124
Injector intermediate harness
GDI -
On-vehicle Service
15. Remove the fuel pressure gauge and special tools from the
fuel pump (high pressure).
Caution
Cover the hose connection with rags to prevent splash
of fuel that could be caused by some residual pressure
in the fuel pipe line.
16. Replace the O-ring at the end of the high-pressure fuel
hose with a new one. Furthermore, apply engine oil to
the new O-ring before replacement.
17. Fit the high-pressure fuel hose to the fuel pump (high
pressure) and tighten the mounting bolt to specified
torque.
18. Check for any fuel leaks by following the procedure in
step 7.
19. Disconnect the MUT-II.
MEASUREMENT OF FUEL HIGH PRESSURE BETWEEN
FUEL PUMP (HIGH PRESSURE) AND INJECTORS
NOTE
Measurement of the fuel pressure between the fuel pump
(high pressure) and the injectors should be carried out after
checking that the fuel pressure between the fuel pump (low
pressure) and the fuel pump (high pressure) is normal.
1. Connect the MUT-II to the diagnosis connector.
2. Disconnect the injector intermediate harness connector.
3. Turn the ignition switch to ON.
4. Select "Item No. 74" from the MUT-II Data list.
5. Crank the engine continuously for 2 seconds or more,
and visually check that there are no fuel leaks from any
parts.
Caution
If any fuel leaks appear, stop cranking immediately
and repair the source of the leak.
6. Check if the fuel pressure is more than 1 MPa immediately
after 20 seconds have passed since cranking was finished.
7. If the fuel pressure is lower than 1 MPa, it means that
there is likely to be a leak in the high-pressure fuel system,
so this system should be checked.
8. Turn the ignition switch to OFF.
9. Connect the injector intermediate harness connector.
10. Start the engine and run at idle.
11. Measure fuel pressure while the engine is running at idle.
Standard value: 4 - 6.9 MPa