13B-197V1 MR-376-X76-13B000$160.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
TEST 8
CONTINUED 3
If the engine does not start, only the static leakage can be measured, i.e. the leakage with the injector closed, not
actuated and under high pressure.
Make sure that the ignition circuit is working correctly (minimum engine speed 200 rpm).
Tooling required
–Mot. 1711 Injector flow measuring kit.
Or: Use 4 pipes with internal diameter 4mm and approximately 50 cm in length, and a test adapter (TEST
IMV).
Procedure
– Switch off the ignition,
– disconnect the return pipes from the four injectors,
– cap the pump venturi tube to prevent the low-pressure circuit from depriming,
– connect the four transparent pipes in place of the return pipes (Mot. 1711),
– disconnect the low pressure actuator from the pump (brown IMV connector) and connect a test IMV or the Mot.
1711,
– electrically disconnect the four injectors,
– switch on the ignition and engage the starter for 5 seconds,
– measure the amount of diesel fuel in each pipe.
If the return leakage is greater than 10 cm, replace the injector(s) (see MR 388 (Logan/Sandero) or MR 451
(Duster), MR 423 (Thalia 2/Symbol 2) or MR 374 (Kangoo VLL), Mechanical, 13B, Diesel injection, Diesel
injector: Removal - Refitting).
Switch off the ignition, and reconnect the four injectors electrically.
Disconnect the test low pressure actuator and reconnect the low pressure actuator connector to the pump.
Disconnect the four transparent tubes and reconnect the injectors return circuit. Switch on the ignition again, and
clear the injection faults using the diagnostic tool.
A
