Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 1266

Fuel pressure gauge set
O-ring or gasket
MD998709
Delivery
pipe
MD998742
MPI -
On-vehicle Service
5. Connect the MUT-II to the diagnosis connector.
High-pressure
fuel hose
6. Turn the ignition switch to "ON" position. (But do not start
7. Select "Item No. 07" from the MUT-II Actuator test to
8. Finish the actuator test or turn the ignition switch to "LOCK"
9. Start the engine and run at idle.
10. Measure fuel pressure while the engine is running at
11. Disconnect the vacuum hose from the fuel pressure
12. Check to see that fuel pressure at idle does not drop
13. Racing the engine repeatedly, hold the fuel return hose
<When using the fuel pressure gauge>
(1) Install the fuel pressure gauge on the special tool
(for measuring the fuel pressure) putting a suitable
O-ring or gasket between them.
(2) Install the special tool which was set up in step (1)
between the high-pressure fuel hose and the delivery
pipe.
the engine.)
drive the fuel pump. Check that there are no fuel leaks
from any parts.
(OFF) position.
idle.
Standard value: Approximately 230 kPa at cerb idle
regulator and measure fuel pressure with the hose end
closed by a finger.
Standard value: 289 - 309 kPa at cerb idle
even after the engine has been raced several times.
lightly with fingers to feel that fuel pressure is present
in the return hose.
NOTE
If the fuel flow rate is low, there will be no fuel pressure
in the return hose.
13A-129