fuel RENAULT SCENIC 2011 J95 / 3.G Engine And Peripherals Siemens Injection Manual Online

13B-309
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests13B
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
TEST 5
CONTINUED 1
Reconnect the fuel flow solenoid valve
connector; before restarting the engine, switch
off the ignition and wait 30 seconds.
Remove the connector for the fuel pressure
solenoid valve (white), does the engine stop?
YES
Reconnect the connector of the fuel pressure
solenoid valve, switch off the ignition and wait for
30 seconds.
Check that the oil level is correct and that the
engine coolant temperature is greater than 60°C.
Engine running at idle speed.
– Run command AC029 High pressure circuit
sealing test.
The engine will perform 4acceleration cycles.
– Refer to parameters PR008 Rail pressure
setpoint and PR038 Rail pressure.
–Does PR038 Rail pressure follow PR008 Rail
pressure setpoint during the phase of the
4acceleration cycles?
NO
NOReplace the pump (the fuel pressure
solenoid valve remains closed
mechanically).
YESCheck the injectors by carrying out Te s t 6.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
A
B

13B-310
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests13B
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
TEST 5
CONTINUED 2
Restore parameters PR063 Fuel temperature and PR064 Coolant temperature.
Fuel temperature reference value when operating at idle speed is between 60 °C and 80 °C.
The coolant temperature reference value is between 80 °C and 90 °C.
Note:
– when the fuel temperature is above 120°C, the maximum rail pressure is reduced to protect the plastic pipes,
– when the coolant temperature is above 100°C, the maximum rail pressure is reduced to protect the engine.
Are the fuel and coolant temperatures within the
reference value range?
YES
NOCheck the coolant temperature (see the
interpretation of DF001 Coolant
temperature sensor circuit) and fuel
temperature sensors (see the
interpretation of DF098 Fuel temperature
sensor circuit).
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
B
C

13B-311
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests13B
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
TEST 5
CONTINUED 3
Ignition on, connector connected to fuel rail
pressure sensor.
Measure the feed voltage at the rail pressure
sensor between connection codes 3LX and
3LZ.
Supply voltage of approximately 5V .
Important: do not measure the resistance at the
high pressure sensor. Risk of destruction.
Are the supply voltages and the sensor voltage
correct?
YES
NOIf the supply voltage is incorrect (5 V),
check the connection and condition of the
connector for the rail pressure sensor and
of computer connector C.
Check the insulation, continuity and the
absence of interference resistance on
the following connections:
– connection code 3LY between
components 120 and 1032,
– connection code 3LX between
components 120 and 1032.
If the connection or connections are faulty
and there is a repair procedure (see
Technical Note 6015A, Electrical wiring
repair, Wiring: Precautions for repair),
repair the wiring, otherwise replace it. If
the fault is still present, contact the
Techline.
If the sensor voltage is incorrect, check
the connection and condition of the
connector for the fuel rail pressure sensor
and of computer connector C.
Check the insulation, continuity and the
absence of interference resistance on
the following connections:
– connection code 3LY between
components 120 and 1032,
– connection code 3LZ between
components 120 and 1032.
If the connection or connections are faulty
and there is a repair procedure (see
Technical Note 6015A, Electrical wiring
repair, Wiring: Precautions for repair),
repair the wiring, otherwise replace it.
If the fault is still present, replace the rail
and its sensor and the high pressure
pipes.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
C
D

13B-313
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests13B
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
TEST 6 Major leak in injectors/injectors open
NOTESConditions prior to test:
The entire low pressure system must be in good condition.
Check the sealing of the high pressure pipes and unions.
Te s t 3 High pressure fuel pressure solenoid valve check is OK.
Test 4 High pressure pump (HPP) and fuel flow solenoid valve check is OK.
Te s t 5 Rail high pressure regulation circuit check is OK.
Causes:
Not enough or no rail pressure during starting.
The engine does not start.
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and Kangoo II Wiring
diagrams Technical Note.
Measure the resistance at the injectors.
Resistance between 150 and 250 kΩ.
Measure at ambient temperature (approx. 20°C),
allow the engine to cool down for at least
30 minutes.
Is the resistance correct?
YES
NOReplace the corresponding injectors.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
SID301_V44_TEST6 / SID304_V45_TEST6 / SID301_V48_TEST6 / SID304_V49_TEST6 / SID304_V4D_TEST6 / SID301_V4C_TEST6
A

13B-315
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests13B
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
TEST 6
CONTINUED 2
– Refit the return pipes.
– Refer to parameters PR008 Rail pressure
setpoint and PR038 Rail pressure.
–Does PR038 Rail pressure follow PR008 Rail
pressure setpoint during the 3second
starting action phase?
NO
Remove the heater plugs and check for
moisture.
If the heater plugs are wet with fuel, it is possible
that the injector is leaking.
Are the heater plugs wet with fuel?
NO
Replace the pump (see replacement of
components).
YES Injection system correct.
YESReplace the corresponding injectors.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
B

13B-316
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests13B
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
TEST 7 Incorrect injection quantity
NOTESConditions prior to test:
The entire low pressure system must be in good condition.
Check the sealing of the high pressure pipes and unions.
Te s t 3 High pressure fuel pressure solenoid valve check is OK.
Test 4 High pressure pump (HPP) and fuel flow solenoid valve check is OK.
Te s t 5 Rail high pressure regulation circuit check is OK.
All the electrical consumers are switched off.
Air conditioning is switched off.
Cause:
The engine runs poorly at idle speed, possibly emits white smoke.
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and KANGOO II Wiring
diagrams Technical Note.
Ignition off.
Measure the resistance at the injectors.
The reference resistance is between 150 and
250 kΩ.
Measure at ambient temperature (approx. 20°C),
allow the engine to cool down for at least
30 minutes.
Are the resistances correct?
YES
NOReplace the corresponding injectors.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
SID301_V44_TEST7 / SID304_V45_TEST7 / SID301_V48_TEST7 / SID304_V49_TEST7 / SID304_V4D_TEST7 / SID301_V4C_TEST7
A

13B-317
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests13B
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
TEST 7
CONTINUED
Restart the engine and let it idle.
Refer to PR064 Coolant temperature and wait
until the temperature is above 60°C.
Refer to the parameters
PR364 Cylinder no. 1 fuel flow correction.
PR365 Cylinder no. 4 fuel flow correction.
PR405 Cylinder no. 2 fuel flow correction.
PR406 Cylinder no. 3 fuel flow correction.
Are the reference values 1 (tolerance - 0.7/+ 0.9)?
NO
If the reference values are 0.3 or 1.9,
check the engine compression.
Is the compression in order?
NO
Engine fault.
YESDisconnect the return system connections
at the injectors and close off the return
pipes so they are leak-tight (pipe and can
kit for engines1711 and 1771).
While the engine is idling, check the return
flow rate at the injector.
After 5minutes the return volume should
be between 16 ml and 30 ml per injector.
Is the return volume between this interval?
Injector OK
Contact the Techline.
NO
YES
YESReplace the
faulty injector.
Check that the
fault is not
due to the
presence of
two heat
protection
washers.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
A

13B-318
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests13B
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
TEST 8 Particle filter injector supply circuit check
NOTESDeal first with faults DF991 Particle filter injector control circuit and DF1004
Electric fuel pump relay control circuit.
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and Kangoo II Wiring
diagrams Technical Note.
Vdiag 45, 49 and 4D only.
Check the condition of the fuel supply pipes
between the particle filter injector and the electric
fuel pump.
Check that the pipes are not trapped, blocked or
pierced and there that are no leaks.
Are the components in good condition?
YES
Check the particle filter injector, component
code 1750.
Check the condition, power feed and
connections of the particle filter injector.
(Consult the interpretation of fault DF991
Particle filter injector control circuit). Check it
works by running command AC238 Particle
filter injector.
Does the particle filter injector operate
correctly?
YES
NOReplace any faulty components.
NOReplace the particle filter injector if
necessary.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
SID304_V45_TEST8 / SID304_V49_TEST8 / SID304_V4D_TEST8 / SID301_V4C_TEST8
A

13B-319
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
TEST 8
CONTINUED 1
Particle filter injector fuel system pressurisation check (pressure test):
To check the pressure in the particle filter injector fuel system:
●Connect the T-union Mot 1311-08 to the particle filter injector fuel filter outlet (adapter visible without
dismantling).
●Connect the pressure gauge Mot 1311-01 to the T-union.
Pressurise the fuel system using the diagnostic tool, and run command AC237 Fuel pump relay.
If the pressure in the system is about 1 bar, perform the command a second time.
The pressure must be at least 3 bar.
If the fuel pressure is less than 3 bar, proceed as follows:
●Carry out a visual inspection of the flexible supply hose to the particle filter injector, before and after the
T-union (leaks, pinching, fuel filter condition, etc.).
Pressurise the fuel system again with the diagnostic tool, and run command AC237 Fuel pump relay.
If the pressure is not equal to or above 3 bar, replace the pump/sender unit (see Technical Note 5117A, Special
features of vehicles fitted with the K9K 772 engine).
Checking the pressure regulator:
●Run command AC237 Fuel pump relay, until the fuel pressure reaches 5 bar.
●Reactivate command AC237 Fuel pump relay again to check that the pressure is controlled between 5.5 bar
and 5 bar.
If the regulator is not working, replace the pump/sender unit (see Technical Note 5117A, Special features of
vehicles fitted with the K9K 772 engine).
Note:
To reduce the pressure in the system, run command AC238 Particle filter injector, until it drops to 3 bar, then
carefully disconnect the union.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
A

13B-320
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
TEST 8
CONTINUED 2
With + after ignition feed on, check for + 12 V feed between connection codes 3AHB and M at the electric pump
connector of the particle filter injector, component code 1767.
If there is no + 12 V feed to the sensor, check the continuity, insulation and absence of interference
resistance on the following connections:
●connection code 3AHB between components 1767 and 1768,
●Connection code M between component 1767 and the vehicle earth.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A,
Electrical wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
(Refer to the interpretation of faults DF1004 Electric fuel pump relay control and DF1001 Particle filter
upstream temperature regulation).
●Reconnect or replace the pipe.
Repeat the pressure test.
●Replace the fuel filter (see MR 392, 385, 364, 370 and 417 Mechanics, 13A, Fuel supply, Fuel filter:
Removal - Refitting).
Repeat the pressure test.
●Replace the particle filter injector electric pump.
Repeat the pressure test.
●Check that the particle filter injector is fitted correctly.
Check that the particle filter injector is correctly held in place. Repair or replace the particle filter injector mounting.
●"Only on Kangoo 2:
Check the integrity and correct fitting of the evaporator plate located under the particle filter injector, at the level of
the bracket.
If the blade of the evaporator plate has become detached, it may be located downstream from the line between its
original position and the oxidation catalytic converter inlet.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.