air condition RENAULT SCENIC 2011 J95 / 3.G Engine And Peripherals EDC16 Injection Workshop Manual

13B-210
MR-372-J84-13B150$846.mif
V10
DIESEL INJECTION
Fault finding - Fault finding chart13B
ALP 6 Rough idle
NOTESBefore dealing with this customer complaint, check that there are no faults,
and the conformity (or otherwise) of the parameters and statuses using
the diagnostic tool.
If the customer complaint is not eliminated, perform the following checks.
Check the seal and condition of the inlet circuit.
Check the low pressure circuit.
Check the engine parameters:
– Check the update of the engine management computer calibration (last calibration).
– Check the conformity of the IMA* codes (using the Identification screen on the Clip diagnostic tool).
– Check the charging circuit (see Technical Note 6014A Checking the charging circuit)
– To check the conformity of the engine speed signal, check:
– The wiring.
– The flywheel position and the condition of the flywheel teeth.
– The position and tightness of the engine speed sensor.
– Check the fuel flow correction at each individual injector, run test 1 Injector test.
Check the connections and wiring of the injectors.
Check the connections and wiring of the engine management computer to the injectors.
Repair if necessary.
Check the high pressure circuit (external leaks).
Check the engine timing (and the position of the high pressure pump sprocket).
Check the lower engine:
– Check the compressions using the Compression Test on the CLIP Technic diagnostic tool or the special tool.
– Check the engine mounts only if there is noise or excessive vibrations at idle speed.
If the checks are correct, contact the Techline.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V44_ALP6 / EDC16_V48_ALP6 / EDC16_V4C_ALP6EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C

13B-211
MR-372-J84-13B150$846.mif
V10
DIESEL INJECTION
Fault finding - Fault finding chart13B
ALP 7 Oil leaks from the turbocharger
NOTESBefore dealing with this customer complaint, check that there are no faults,
and the conformity (or otherwise) of the parameters and statuses using
the diagnostic tool.
If the customer complaint is not eliminated, perform the following checks.
Check the area around the turbocharger
Note:
An oil leak does not correspond always to a turbocharger fault, the oil leak can arise from the area around
the turbocharger.
Depending on the vehicle type, the best visual access will be either from above or from below.
1-Do not start the engine.
Check the area around the turbocharger and identify the origin of the leaks.
Clean the oil traces on the turbocharger.
2- Start the engine and let it warm up for several minutes.
IMPORTANT
If the air filter was removed previously, refit it before starting the engine (risks foreign matter entering the air inlet
circuit).
Accelerate with no load several times, progressively increasing the duration before releasing the accelerator
pedal.
Visually inspect the exterior condition of the fuel supply pipes and the turbocharger oil return and the area
around it.
Identify the origin of the leaks.
Is an oil leak present at the air compressor inlet or outlet?
YES
NO
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V44_ALP7 / EDC16_V48_ALP7 / EDC16_V4C_ALP7EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C

13B-218
MR-372-J84-13B150$893.mif
V10
DIESEL INJECTION
Fault finding - Tests
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
13B
TEST 1 Injector test
Part A: Fuel regulation balance check for each injector (individual correction):
– In the CLIP diagnostic tool, choose the Fuel circuit subfunction.
– With the engine idling and the fuel temperature > 50°C, display the flow correction values for each injector
(individual correction), i.e.:
– PR364 Cylinder no. 1 fuel flow correction.
– PR405 Cylinder no. 2 fuel flow correction.
– PR406 Cylinder no. 3 fuel flow correction.
– PR365 Cylinder no. 4 fuel flow correction.
The normal flow correction range per injector is between - 5 mg/stroke and + 5 mg/stroke without reaching
these values.
– If this has not already been carried out, check the injector connections and wiring.
– Check the connections and wiring of the engine management computer to the injectors.
– Repair if necessary.
– Check the IMA injector codes, by comparing the IMA engraved codes on the injectors (the IMA codes are read
from left to right) and the IMA codes read with the Clip diagnostic tool.
– If the IMA codes are correct, continue the fault finding procedure,
– If not, modify the incorrect IMA codes using command SC002 Enter injector codes (see Interpretation of
commands).
To confirm the repair, consult part B of this test.
CASE No. 1: If at least one of these values is equal to or greater than + 5 mg/st
– Check the valve clearance.
– Check the condition of the engine and the compressions (using the Clip diagnostic tool or a compression
gauge).
– If the compression test reveals a cylinder fault, carry out the necessary repairs.
– If the compression is correct, check the fitting conformity of the injector (see MR 364 (Mégane II) or 370
(Scénic II), 13B, Diesel injection, Diesel injector: Removal - Refitting)
In particular, check that each injector has one compression washer.
Check the fuel regulation again for each injector (individual correction).
If not, replace the injector and check for the sealing washer. Modify the IMA code using command SC002 Enter
injector codes (see Interpretation of commands).
–Run Part B of this test to confirm the fault finding procedure.
CASE no. 2: If at least one of these values is less than or equal to - 5 mg/stroke
– Check the valve clearance.
– Check the level and condition of the engine oil.
– Remove the injector with the largest correction.
– If there is diesel fuel contamination, check the condition of the cylinder concerned (cylinder, piston, valves). Use
an endoscope if possible.
– Only replace the removed injector, and modify the IMA code using command SC002 Enter injector codes
(see Interpretation of commands).
–Run Part B of this test to confirm the fault finding procedure.
EDC16_V44_TEST1 / EDC16_V48_TEST1 / EDC16_V4C_TEST1

13B-227
MR-372-J84-13B150$893.mif
V10
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4CDIESEL INJECTION
Fault finding - Tests13B
TEST 2 Turbocharger air chain
Check for an air filter.
Check the replacement frequency for the air filter in the Maintenance Booklet.
Compare the part numbers of the air filter fitted to the vehicle and that of the air filter recommended by the
manufacturer.
Check the air filter direction of fitting.
Is the air filter fitted to the vehicle correct?
YES
Check the condition of the air filter.
Visually inspect the condition of the filter section of
the air filter.
Is the air filter or its seal damaged?
Is the air filter clogged (does it contain a lot of
impurities)?
NO
Low pressure circuit check
Note:
According to the vehicle type, maximum visual
access will either be from above or from below.
Visually inspect the condition of the following
components:
– fresh air inlet scoop on the front end panel of the
vehicle,
– air filter air inlet pipe,
– filter air pipe up to the compressor inlet,
– air flowmeter mountings.
Is one of these components incorrect
(disconnected, cut, bent, pierced or kinked
pipes)?
NO
NO
YES
Replace the air filter (see MR 364 (Mégane II)
or 370 (Scénic II), Mechanical, 12A, Fuel
mixture,
Air filter,
Removal - Refitting
).
YESReplace the defective parts (see MR 364
(Mégane II) or 370 (Scénic II), Mechanical,
12B, Turbocharging).
EDC16_V44_TEST2 / EDC16_V48_TEST2 / EDC16_V4C_TEST2

13B-228
MR-372-J84-13B150$893.mif
V10
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4CDIESEL INJECTION
Fault finding - Tests13B
TEST 2
CONTINUED
High pressure circuit check
Note:
According to the vehicle type, maximum visual
access will either be from above or from below.
Visually inspect the condition of the following
components:
– outlet pipe of the compressor to the turbocharging
air cooler,
– turbocharging air cooler outlet pipe at inlet
manifold,
– inlet manifold,
– temperature and pressure sensors.
Is one of these components incorrect
(disconnected, cut, bent, pierced or kinked
pipes)?
NO
Exhaust system check
Visually inspect the condition of the following
engine parts:
– the exhaust manifold circuit to the turbocharger
turbine,
– 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?
NO
Run test 3: Turbocharger control solenoid valve check.
YESReplace the defective parts (see MR
364 (Mégane II) or 370 (Scénic II),
Mechanical, 12B, Turbocharging).
YES