Lancer Evolution L4-2.0L Turbo (4B11T/C) (2010)
5. Connect scan tool MB991958 to the data link connector.
6. Turn the ignition switch to the ON position (But do not start the engine).
7. Use Actuator test "item number 9" to drive the fuel pump. Check that there is no fuel leaking from any section when the fuel pump is operating.
8. Finish the actuator test or turn the ignition switch to the LOCK (OFF) position.
9. Start the engine and run at idle.
10. Measure fuel pressure while the engine is running at idle.
Standard value: Approximately 260 kPa (38 psi) at curb idle
11. Remove the vacuum hose from the intake manifold and measure fuel pressure after the nipple closed with a cap.
Standard value: 310 - 345 kPa (45 - 50 psi) at curb idle
12. Check to see that fuel pressure at idle does not drop even after the engine has been revved several times.
13. Revving the engine repeatedly, hold the fuel return hose lightly with your 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.
14. If any of fuel pressure measured in Step 10 to 13 is out of specification, troubleshoot and repair according to the table below.
(Part 1)