2011 RENAULT SCENIC injector

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-217
MR-372-J84-13B150$893.mif
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

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-219
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
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.

13B-221
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
CONTINUED 3
Fit the blanking plugs (B), from the kit (part number 77 01 208 229), on the end pieces of the fuel return pipe.
If mot. 1760 is not fitted immediately on the injectors, put blanking plugs (A) on the fuel return openings of the
injectors.

13B-223
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
CONTINUED 5
Connect the pipes of tool Mot. 1760 to the injectors (without removing the clips on the injectors):
– press on the injector clip,
– insert the end piece into the injector fuel return opening.
– remember to fit the end piece plugs to the injector fuel return openings with the clips provided,
– remove the plugs left on tool mot. 1760

13B-225
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-226
MR-372-J84-13B150$893.mif
V10
DIESEL INJECTION
Fault finding - Tests
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
13B
3 - Removing the tool:
End of test 1.
TEST 1
CONTINUED 8
IMPORTANT
Use a cleaning cloth (part number 77 11 211 707) to absorb fuel run-off.
Disconnect the pipe from an injector:
– press on the injector clip,
– pull vertically on the end piece of the pipe of tool mot. 1760 while putting a cloth on the end piece to avoid drips.
Lift the end piece vertically so that the fuel contained in the pipes flows into the measuring cylinders of tool
mot. 1760.
Remove the other 3 pipes using the same procedure.
Remove the plug welds from the fuel return pipe end pieces.
Connect the complete fuel return pipe to the injectors.
Wipe up any fuel run-off with a cleaning cloth (part number 77 11 211 707).