[ Model - ECLIPSE CROSS / Year - 2018 ]
INJECTOR CHECK
2018 / ECLIPSE CROSS / EC - Workshop Manual
13 -FUEL > 13A-DIRECT INJECTION AND MULTIPOINT FUEL INJECTION (DI AND MPI) > ON-VEHICLE SERVICE > INJECTOR CHECK
 
 
INJECTOR
 
 
CHECK THE OPERATION SOUND
 
1.
cautionBeware that the operation sounds of other injectors can be heard even if the injector that is being inspected might not be operating.
Use a stethoscope to listen to the operation sound (clicking) of the injectors while the engine is idling or cranking.
2. Verify that the operation sound increases with the engine speed.
noteIf the operating sound cannot be heard, inspect the injector actuation circuit.
 
 
 
MEASUREMENT OF RESISTANCE BETWEEN TERMINALS
1. Disconnect the injector connector.
2. Measure the resistance between terminals.
Standard value: 10.5 - 13.5 Ω (at 20°C)
3. If the resistance is deviates from the standard value, replace the injector.
 
 
CHECK THE INJECTION CONDITION
1. Release the residual pressure in the fuel pipe line to prevent the fuel from running out (Refer to ).
cautionDo not make fuel splash by covering fuel with waste and so on because the residual pressure is in the fuel pipeline.
2. Remove the fuel high-pressure hose at the delivery pipe side.
3. Remove the injector.
 
4. Prepare the special tool called injector test set (MB992076) as shown in the figure.
(1) Disconnect the injector mounting hose.
(2) Remove the adapter for mounting injector and attach the special tool Injector test nipple (MB992088) instead.
(3) After attaching the injector on the special tool Injector test nipple (MB992088), secure it with the special tool injector holder (MB992184).
 
5. Mount the injector test set (MB992076) prepared with the special tool hose adapter (MB992001) onto the fuel high-pressure hose.
6. Connect the M.U.T.-IIISE to the diagnosis connector.
7. Turn the ignition switch to "ON" position (but do not start the engine).
8. Select "Item No. 2" from M.U.T.-IIISE actuator test and drive the fuel pump.
 
9. Connect the special tool injector test harness (MB991607) between the injector and battery to drive the injector.
10. Check each injector for spray conditions. The condition can be considered satisfactory unless it is extremely poor.
11. Stop the actuation of the injector, and check for leakage from the injector nozzle.
Standard value: 1 drop or less per minute
12. After turning the ignition switch to the "LOCK" (OFF) position, remove the M.U.T.-IIISE.
13. Actuate the injector until it does not spray fuel any longer, then drain the fuel inside the special tool.
14. Remove the special tool.
15. When the spray condition is extremely poor or any fuel leaks from the injector nozzle, replace the injector.
16. Replace the injector and fuel high-pressure hose in the original places.
 
 
 
 
INJECTOR (HIGH PRESSURE)
 
 
MEASUREMENT OF RESISTANCE
 
1. Disconnect the injector (high pressure) connector.
2. Measure the resistance between terminals.
Standard value: 1.74 - 2.04 Ω (at 20°C)
3. Measure the resistance between injector (high pressure) body and either terminal No. 1 or terminal No. 2 of the connector at the injector (high pressure).
Standard value: No continuity
4. If the resistance is deviates from the standard value, replace the injector (high pressure).