13B-196V1 MR-376-X76-13B000$160.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
TEST 8
CONTINUED 2
At the end of the idling phase and these two cycles, the return volume of each injector must be:
45 ml (maximum)for Euro 4 type engines: K9K 714 - 718 - 740 - 792 - 796.
35 ml (maximum).for the euro 3 type engines: K9K 790 - 794.
If the return volume of one of the injectors is more than the values above, only replace the faulty injector (see
MR388 (Logan/Sandero) or MR451 (Duster), Mechanical, 13B, Diesel injection, Diesel injector: Removal -
Refitting).
Disconnect the 4 transparent pipes and reconnect the injector return circuit.
Carry out the following test to confirm the repair:
– With the ignition off, disconnect the low pressure actuator from the pump (brown IMV connector) and connect
the test adapter (test IMV, Mot. 1711),
– electrically disconnect the 4 injectors,
– switch on the ignition, connect the diagnostic tool and re-establish dialogue with the injection system,
– Go to the Main computer statuses and parameters screen,
– activate the starter for 5 seconds,
– read the maximum rail pressure value PR038 Rail pressure during the test on the diagnostic tool.
If the rail pressure (PR038 Rail pressure) is lower than 1050 bar, run test 6 High pressure system check.
– Switch off the ignition, and reconnect the four injectors electrically,
– disconnect the test filling actuator (test IMV) and reconnect the low pressure actuator connector (IMV) to the
pump,
– switch on the ignition again, and clear the injection faults using the diagnostic tool.
If the rail pressure (PR038) is greater than 1050 bar, the repair is correct.
End of TEST8.
13B-201V1 MR-376-X76-13B000$160.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
TEST 11
CONTINUED
High pressure circuit check
Note:
Depending on the vehicle type, the best visual access will be either
from above or from below.
Visually inspect the condition of the following components:
– the compressor outlet pipe to the turbocharging air cooler (the
turbocharging air cooler does not exist for all engines),
– outlet pipe of the turbocharging air cooler to the inlet manifold,
– inlet manifold,
– temperature and pressure sensors.
Is one of these components incorrect (disconnected, cut, bent,
pierced or kinked pipes)?Replace the faulty parts
(see MR 388 (Logan/
Sandero), MR 451
(Duster), MR 423 (Thalia
2/Symbol 2) or MR 374
(Kangoo VLL),
Mechanical, 12B,
Turbocharging). Exhaust system check
– Visually inspect the condition of the following engine sections:
– from the exhaust manifold circuit to the turbocharger turbine,
– from the turbine outlet pipe to the end of the exhaust pipe,
– from the inlet manifold to the EGR valve
– check that the temperature and pressure sensors are connected.
Do some of these components have black or white marks on
them?
Run TEST 10 Turbocharger solenoid valve check.
A
YES
NO
YES
NO
