check engine RENAULT SCENIC 2011 J95 / 3.G Engine And Peripherals EDC16 Injection Workshop Manual

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V10
DIESEL INJECTION
Fault finding - Fault finding chart13B
ALP 7
CONTINUED 1
Check the air compressor inlet or outlet
Check for a loose interface (inlet or outlet) that is
the cause of the air leak.
Note:
It is normal to find oil traces inside the pipes at
the turbocharger inlet or outlet, because the air
entering the compressor is laden with oil from
the engine rebreathing circuit.
Is the suspected interface properly tightened?
YES
Replace the pipe concerned (see MR 364 (Mégane II) or 370 (Scénic II), Mechanical, 12B, Turbocharging).
NOTighten the interface or the concerned pipe.
End of procedure.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C

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V10
DIESEL INJECTION
Fault finding - Fault finding chart13B
ALP 7
CONTINUED 2
Is an oil leak present only at the casing of the compressor section?
YES
The turbocharger is not faulty. The oil leak is from
another engine component and the oil is flowing
onto the turbocharger.
NO
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
C
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C

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V10
DIESEL INJECTION
Fault finding - Fault finding chart13B
ALP 7
CONTINUED 3
Is an oil leak present at the turbocharger oil supply inlet or outlet?
YESNO
Check the turbocharger oil supply inlet
and outlet.
Check for a loose interface (inlet or outlet) that is
the cause of the oil leak.
Is the suspected interface properly tightened?
YES
Replace only the seal or the pipe of the section concerned (see MR 364 (Mégane II) or 370 (Scénic II),
Mechanical, 12B, Turbocharging).
Is an oil leak present at the interfaces of the turbine casing and the exhaust pipes?
YES
The turbocharger is not faulty. Another engine fault is probably present.
Mark the component that is the source of the leak and refer to the repair manual (see MR 364 (Mégane II)
or 370 (Scénic II), 10A Engine and peripherals).
NORetighten or the pipe concerned.
End of procedure.
NO
End of procedure.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
C
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C

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V10
DIESEL INJECTION
Fault finding - Fault finding chart13B
ALP 9 Exhaust fumes
Run test 2 Air line at the turbocharger.
Run test 3 Turbocharger control solenoid valve check
Is the vehicle equipped with a particle filter?
NO
Start the engine and warm it up at idle speed for
10 minutes.
IMPORTANT
If the air filter was removed previously, refit it before
starting the engine (risks foreign matter entering
the air inlet circuit).
Perform several rapid and brief accelerations under
no load.
Note:
The presence of smoke is often normal.
The quantity, density, colour and persistence
of the smoke are the important factors.
Is the exhaust outlet producing abnormal
smoke?
YES
Consult test 4 Turbocharger.
YES
Perform the fault finding of the "particle filter"
function, refer to the TESTS or corresponding
ALP.
NOThe turbocharger is not faulty. Another engine
fault is probably present. Consult the TEST
or the corresponding ALP.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V44_ALP9 / EDC16_V48_ALP9 / EDC16_V4C_ALP9
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C

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V10
13B
DIESEL INJECTION
Fault finding - Tests
*: Technical Note 3419: Fault finding of the turbocharger for petrol and diesel enginesINJECTOR TESTTEST 1
AIR LINE AT THE TURBOCHARGER TEST 2
TURBOCHARGER CONTROL SOLENOID VALVE CHECKTEST 4
from
Technical
Note 3419*
TURBOCHARGERTEST 4
from
Technical
Note 3419
DIESEL FUEL CONFORMITY CHECK TEST 5
INCORRECT OPERATION OF THE OVERPRESSURE VALVE TEST 6
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
MR-372-J84-13B150$893.mif

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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

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DIESEL INJECTION
Fault finding - Tests
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
13B
TEST 1
CONTINUED 1
CASE No. 3: If at least one of these values does not stabilise (20 seconds after starting).
– Check the low pressure circuit.
– Ensure that the correct fuel is being used.
–Run Part B of this test to confirm the fault finding procedure.
CASE No. 4: If the fuel flow correction values are all correct (between
- 5 mg/st and + 5 mg/st)
Run Part C of this test (Fuel return flow measurement).
IMPORTANT
For the removal - refitting of the injectors, observe the cleanliness and safety instructions (see MR 364
(Mégane II) or 370 (Scénic II), Mechanical, 13B, Diesel injection, Diesel injector: Removal - refitting).
Part B: Confirmation of flow correction fault finding for each injector (individual correction):
Clear the faults and perform a test with the engine idling for at least 5 minutes, fuel temperature > 50°C.
Check that no fault appears on the CLIP diagnostic tool and that the corrective values do not reach ± 5 mg/
stroke to confirm the repair.
If the customer complaint is still present and the fuel flow correction values are between -5 mg/st and
+5 mg/st, run Part A: Fuel regulation balance check for each injector (individual) of this test (Case no. 4).
If one or more cylinders has an injector flow correction value in excess of ± 5 mg/stroke, run Part A Fuel
regulation balance check for each injector (individual), as one or more additional injectors may be defective.

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MR-372-J84-13B150$893.mif
V10
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4CDIESEL INJECTION
Fault finding - Tests13B
2 - Injector return flow balance check:
TEST 1
CONTINUED 7
Does the engine start?
YES
– The injector return pipes must be fitted to the injectors.
– Start the engine.
– Display the Fuel circuit sub-function in the CLIP diagnostic tool.
– Raise the temperature of the engine.
– Read the diesel fuel temperature with PR063 Fuel temperature until a diesel fuel temperature greater than
50°C is reached
– Switch off the engine.
–Fit Mot. 1760 as shown in the installation procedure (see step 1).
– Check the value of the PR038 Rail pressure.
– Ask another Cotech to monitor the rise in fuel in the cans during engine turnover, as one of the cans will fill up
quickly if one of the injectors is leaking.
– Start the engine.
– Accelerate the engine until the pressure in the rail is 550 bar:
– if the engine speed is less than 3,000 rpm, maintain this pressure,
– if the engine speed is greater than 3,000 rpm, reduce the engine speed until the rail pressure is 500 bar and
maintain this pressure.
– Maintain these conditions for 1min.
– Release the accelerator pedal and maintain the idle speed for 10 seconds.
– Switch off the engine.
– Measure the quantity of fuel contained in each measuring cylinder.
– Replace the injector if the quantity of diesel fuel is more than 50 ml.
– Remove Mot. 1760 as shown in the tool removal procedure (see step 3).NO–Fit Mot. 1760 as shown in the tool fitting procedure.
– Start the vehicle or do a starting sequence of 15 s (with ignition key).
– Measure the length travelled by the diesel fuel in the pipes of the
Mot. 1760.
– Replace the injector if the length travelled by the fuel is more than
10 cm compared with the average of the other three injectors.

13B-228
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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