bulb RENAULT SCENIC 2011 J95 / 3.G Engine And Peripherals EDC16C36 Workshop Manual

13B-15V9 MR-372-J84-13B450$050.mif
13B
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
System outline
The high pressure injection system is designed to deliver a precise quantity of diesel fuel to the engine at a set
moment.
It is fitted with a BOSCH 128-track computer, type EDC16C36.
The system comprises:
– a priming bulb on the low pressure circuit,
– a diesel filter,
– a high pressure pump with a built-in low pressure pump (transfer pump),
– a high pressure regulator mounted on the pump,
– an injector rail,
– a diesel fuel pressure sensor built into the rail,
– four solenoid injectors,
– a diesel temperature sensor,
– a coolant temperature sensor,
– a cylinder reference sensor,
– an engine speed sensor,
– a turbocharger pressure sensor,
– an accelerator pedal potentiometer,
– an exhaust gas recirculation solenoid valve,
– a recycled gas cooling solenoid valve,
– an atmospheric pressure sensor integrated into the injection computer,
– an air flowmeter fitted with an air temperature sensor,
– a turbocharging pressure limitation solenoid valve,
– a motorised damper valve,
– a particle filter (F9Q816 engine only),
– a particle filter differential pressure sensor (F9Q816 engine only),
– a temperature sensor upstream of the particle filter (F9Q816 engine only),
– a temperature sensor downstream of the particle filter (only on certain F9Q816 engines in VDiag 48),
– a temperature sensor upstream of the turbine (F9Q816 engine only),
– a richness ratio sensor,
– a turbocharger cooling pump.
The common rail direct high pressure injection system works sequentially (based on the petrol engine multipoint
injection).
This injection system reduces operating noise, reduces the volume of pollutant gases and particles and produces
high engine torque at low engine speeds thanks to a pre-injection procedure.
The high pressure pump generates the high pressure and transmits it to the injector rail. The actuator located on the
pump controls the quantity of diesel supplied, according to the demand determined by the computer. The rail
supplies each injector through a steel pipe.
DIESEL INJECTION
Fault finding – Features

13B-389
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
V9 MR-372-J84-13B450$190.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
ALP6 External leaks from the fuel circuit
NOTESBefore analysing 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.
IMPORTANT
Please observe the cleanliness guidelines and safety advice.
Procedure for checking for an external leak on the fuel circuit:
Clean away traces of grease with clean thinner and wipe the part or parts concerned with cleaning cloths.
Start the engine and increase the engine temperature until the diesel fuel reaches 40/50°C.
Stop the engine and check for traces of grease on the part or parts concerned.
If this is the case, replace the part or parts concerned.
Bleed the fuel circuit and continue the checks.
Does the priming bulb show traces of grease?
(Visual and tactile inspections)
Check the assembly of the components and the
condition of the seal at the union of the two
components, if the leak is at the seal.
Replace the part or the parts concerned.
Bleed the fuel circuit and continue the checks.
Check the counter pressure valve located on the
fuel return line, after the injectors. Does the diesel filter show traces of grease?
(Visual and tactile inspections)
Do the fuel return pipes show traces of grease?
(Visual and tactile inspections)
YES
NO
YES
NO
YES
A
EDC16C36_V44_ALP06/EDC16C36_V4C_ALP06/EDC16C36_V48_ALP06/EDC16C36_V50_ALP06/EDC16C36_V54_ALP06/
EDC16C36_V58_ALP06EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58

13B-409V9 MR-372-J84-13B450$200.mif
DIESEL INJECTION
Fault finding – Tests13B
TEST3
CONTINUED
Check the condition and operation of the priming bulb.
Perform repairs if necessary and continue the test.
Check the condition of all the low pressure diesel pipes from the tank to the injection pump (in particular no pinching
of pipes).
If the fault is still present with a low fuel level, check the consistency of the actual fuel level and that indicated on
the instrument panel.
– The transfer pump is supplied via a Venturi pipe mounted underneath it.
Check that the opening of the venturi (6 to 8 mm in diameter) is not blocked by dirt contained in the fuel tank.
Check the priming of the low pressure diesel circuit.
Check the conformity of the fuel used by running test 11 Diesel fuel conformity check:
– Compare the fuel with some clean diesel in order to detect petrol, solvent, thinners, sulphuric acid (fuel will have
a whitish appearance), water or fuel oil.
If the diesel fuel is not correct:
– Replace the diesel fuel.
– Change the diesel filter.
– Bleed the low and high pressure diesel circuit.
Low pressure circuit correct.
A
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58