fuel pressure RENAULT SCENIC 2014 J95 / 3.G Petrol Injection - Sagem3000 Workshop Manual
[x] Cancel search | Manufacturer: RENAULT, Model Year: 2014, Model line: SCENIC, Model: RENAULT SCENIC 2014 J95 / 3.GPages: 181
Page 7 of 181
PETROL INJECTION
Fault finding – System operation17B
17B - 7V12 MR-372-J84-17B000$090.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48PETROL INJECTION
Fault finding – System operation
1. SYSTEM OPERATION
Composition
The injection system consists of the:
– accelerator potentiometer,
– accelerator pedal switch,
– TDC sensor,
– atmospheric pressure sensor,
– air temperature sensor,
– coolant temperature sensor,
– freon pressure sensor,
– upstream oxygen sensor,
– downstream oxygen sensor,
– cruise control switch,
– steering column switch,
– cruise control on/off switch,
– brake lights switch,
– fuel vapour absorber,
– injection computer,
– motorised throttle valve,
– four injectors,
– four pencil coils,
– + turbocharging pressure sensor,
– coolant pump
– turbocharging solenoid valve.
Computer
SAGEM S3000 flash EEPROM 128-track computer controlling the injection and the ignition.
Multipoint injection in sequential mode.
Connections to the other computers:
– Protection and Switching Unit (UPC)
– Passenger Compartment Control Unit (UCH),
– Automatic Transmission Electronic Control Unit (AUTO ECU).
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MR-372-J84-17B000$090.mif
Page 19 of 181
PETROL INJECTION
Fault finding – Fault summary table17B
17B - 19V12 MR-372-J84-17B000$270.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
*AT: Automatic Transmission
*BVR: Sequential gearboxTool
faultsHexadecimal
DTC codesDescriptionLevel 1 fault
warning lightNo warning
light onOBD warning
light
DF0840685Actuator relay control
circuit1.DEF
DF0850627Fuel pump relay control
circuitCO/ CC.0
CC.1
DF0862600Coolant pump control
circuitCO/ CO.0
CC.1
DF0880325 Pinking sensor circuit 1.DEF
DF0890105Inlet manifold pressure
sensor circuit1.DEF
2.DEF
DF0910500 Vehicle speed signal 1.DEF
DF0920130Upstream oxygen
sensor circuitCO.0
CC.1
1.DEF
DF0930136Downstream oxygen
sensor circuitCO.0/CC.1
DF0950120Throttle potentiometer
circuit gang 1CO.0/CC.1
1.DEF
DF0960220Throttle potentiometer
circuit gang 2CO.1/CC.0
DF099C101TA* or BVR*
connection via the
multiplex network1.DEF
DF100C155Instrument panel
multiplex connection1.DEF
DF101C122Multiplex ESP
connection1.DEF
DF1050585Cruise control/speed
limiter on/off circuit1.DEF
DF1060575Cruise Control/Speed
Limiter function selector
on steering wheel1.DEF
DF108C115LPG/CNG computer
multiplex connection1.DEF
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Page 92 of 181
PETROL INJECTION
Fault finding – Conformity check17B
17B-92V12 MR-372-J84-17B000$450.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
FUEL CIRCUIT SUB-FUNCTION
NOTESOnly check conformity after a thorough check with the diagnostic tool.
The values shown in this conformity check are given as a guide.
Application condition: engine off, ignition on.
Order FunctionParameter or Status
Checked or ActionDisplay and notes Fault finding
1Engine
speedPR055: Engine speedIndicates the engine's speed
of rotation in rpm.
0 rpm < PR055 < 500 rpmIn the event of a fault
apply the interpretation
for DF154 Flywheel
signal sensor circuit.
2
Motorised
throttlePR014: Idling speed
correctionShows engine idling speed
correction value.
PR014= 0rpm.
The idle speed regulator
performs all of the
calculations that allow the idle
speed actuator to be
controlled physically: the
motorised throttle. The
functional component of the
regulator is adaptive
(variation programming and
ageing).WITHOUT
3 PR054: Idle speed
regulationACTIVE
INACTIVEIf ACTIVE apply the
interpretation for ET054
Idle speed regulation.
4 PR010: Idle speed
regulation
setpointThe idle speed regulation
setpoint depends on the
coolant and oil temperature,
the position of the gear lever,
and which electrical
consumers are operating.
752 rpm. < PR010
< 1216 rpm.
If a manifold pressure sensor
fault is present or stored, the
idle speed setting is 896 rpm.In the event of a fault
apply the interpretation
for ET054, Idle speed
regulation.
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Page 113 of 181
PETROL INJECTION
Fault finding – Conformity check17B
17B-113V12 MR-372-J84-17B000$450.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
FUEL CIRCUIT SUB-FUNCTION
NOTESOnly check conformity after a thorough check with the diagnostic tool.
The values shown in this conformity check are given as a guide.
Application conditions: Engine warm, at idle speed.
Order FunctionParameter or Status
Checked or ActionDisplay and notes Fault finding
1Engine
speedPR055: Engine
speedIndicates the engine's speed of
rotation in rpm.
700 rpm < PR055 < 6500 rpmIn the event of a
fault, apply the
interpretation for
DF154 Flywheel
signal sensor
circuit.
2
Motorised
throttlePR014: Idling
speed
correctionShows engine idling speed
correction value.
0 rpm < PR014 < 224 rpm.
The idle speed regulator performs all
of the calculations that allow the idle
speed actuator to be controlled
physically: the motorised throttle.
This regulator has a built-in adaptive
component (variation and ageing
programming).WITHOUT
3ET054: Idle speed
regulationACTIVE
INACTIVEIf INACTIVE apply
the interpretation for
ET054 Idling speed
regulation.
4 PR010: Idle speed
regulation
setpointThe idle speed regulation setpoint
depends on the coolant and oil
temperature, the position of the gear
lever, and which electrical
consumers are operating.
752 rpm < PR010 < 1216 rpm.
If a manifold pressure sensor fault is
present or stored, the idle speed
setting is 896 rpm.In the event of a
fault, apply the
interpretation of
ET054 Idle speed
regulation.
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Page 140 of 181
PETROL INJECTION
Fault finding – Interpretation of statuses17B
17B - 140V12 MR-372-J84-17B000$540.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
ET054
IDLING SPEED REGULATION
NOTESThere must be no present or stored faults.
Check the parameters PR032, PR058, PR064, PR118, PR119 and PR030.
Check that all these parameters are completely correct.
IDLING SPEED
TOO LOW
Check:
– the engine oil level (too high splashing),
– that the exhaust pipe is not blocked (catalytic converter damaged),
– the cleanliness and conformity of the air filter,
– that the air inlet circuit is not blocked,
– that the throttle valve is not clogged,
– the condition and conformity of the spark plugs,
– the fuel circuit sealing,
– the fuel pressure and flow (see MR 364 Mechanics, 17B, Petrol injection),
– the condition and cleanliness of the injectors,
– the cylinder compression's,
– the timing adjustment,
– the hydraulic tappets if there is camshaft noise (see MR 364 Mechanics, 11A, Top and front of engine).
Repair the defective component if necessary.
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Page 141 of 181
PETROL INJECTION
Fault finding – Interpretation of statuses17B
17B - 141V12 MR-372-J84-17B000$540.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
ET054
CONTINUED
IDLING SPEED
TOO HIGH
Check:
– the engine oil level (too high oil combustion),
– that the restrictions are present in the oil vapour rebreathing circuit,
– the sealing between the throttle valve and inlet manifold,
– the manifold pressure sensor sealing,
– the fuel vapour absorber bleed, which must not be jammed open,
– the fuel vapour absorber bleed system sealing,
– the brake servo system sealing,
– the sealing between the inlet manifold and cylinder head,
– the oil vapour recovery circuit sealing between the inlet manifold and cylinder head,
– the fuel pressure and flow (see MR 364 Mechanics, 17B, Petrol injection),
– the condition and cleanliness of the injectors,
– the cylinder compression's,
– the timing adjustment,
– the hydraulic tappets if there is camshaft noise (see MR 364 Mechanics, 11A, Top and front of engine).
Repair the defective component if necessary.
AFTER REPAIRRepeat the conformity check from the start.
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Page 143 of 181
PETROL INJECTION
Fault finding – Interpretation of statuses17B
17B - 143V12 MR-372-J84-17B000$540.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
ET055
CONTINUED
Check:
– the condition of the air filter,
– that the air inlet circuit is not blocked,
– the condition and conformity of the spark plugs,
– the sealing between the throttle valve and inlet manifold,
– the manifold pressure sensor sealing,
– the fuel vapour absorber bleed, which must not be jammed open,
– the fuel vapour absorber bleed system sealing,
– the brake servo system sealing,
– the turbocharger safety valve circuit sealing,
– the cylinder head oil vapour recovery system sealing,
– the sealing between the inlet manifold and cylinder head,
– the exhaust pipe sealing between the cylinder head and catalytic converter.
– the fuel flow rate and pressure.
If the idling speed is not stable, check:
– the timing adjustment,
– the hydraulic tappets if there is camshaft noise (seeMR 364 Mechanical, 11A, Top and front of engine),
– the cylinder compression's.
Drive the vehicle to check the repair.
Repair the defective components.
AFTER REPAIRRepeat the conformity check from the start.
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Page 159 of 181
PETROL INJECTION
Fault finding – Interpretation of parameters17B
17B - 159V12 MR-372-J84-17B000$675.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
PR032
INLET PRESSURE
NOTESThere must be no present or stored faults.
Check the cleanliness and condition of the manifold pressure sensor and its connections.
Repair if necessary.
Disconnect the battery and the injection computer.
Check the cleanliness and condition of the connections.
Using the Universal bornier, check the insulation and continuity of the following connections:
Computer, connectorB, track H2 track 1 of the manifold pressure sensor.
Computer, connectorB, track H3 track 3 of the manifold pressure sensor
Computer, connectorB, track H4 track 2 of the manifold pressure sensor
Repair if necessary.
If the fault is still present, replace the manifold pressure sensor.
If the fault is still present, carry out the following checks:
The inlet line must be perfectly sealed, from the throttle valve to the cylinder head.
Check:
– the condition of the air filter,
– that the air inlet circuit is not blocked,
– the sealing between the throttle valve and inlet manifold,
– the manifold pressure sensor sealing,
– the fuel vapour absorber bleed, which must not be jammed open,
– the fuel vapour absorber bleed system sealing,
– the brake servo system sealing,
– that there are no leaks in the turbocharger safety valve circuit,
– the cylinder head oil vapour recovery system sealing,
– the sealing between the inlet manifold and cylinder head,
– the exhaust pipe sealing between the cylinder head and catalytic converter.
Repair if necessary.
AFTER REPAIRRepeat the conformity check from the start.
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Page 163 of 181
PETROL INJECTION
Fault finding – Interpretation of parameters17B
17B - 163V12 MR-372-J84-17B000$675.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
PR098
UPSTREAM OXYGEN SENSOR VOLTAGE
NOTESThere must be no present or stored faults.
Check the cleanliness and condition of the upstream oxygen sensor connections.
Repair if necessary.
Disconnect the battery and the injection computer.
Check the cleanliness and condition of the connections.
Using the universal bornier, check the insulation and continuity on the following connections:
Injection computer connectorC, track C1 track D of the upstream oxygen sensor
Injection computer, connectorC, track B1 track C of the upstream oxygen sensor
Repair if necessary.
Check that the upstream oxygen sensor is secure.
Repair if necessary.
If the vehicle is driven frequently in town, carry out a decoking procedure.
Check that there are no leaks in the exhaust system, from the manifold to the catalytic converter.
Repair if necessary.
If the fault is still present, replace the upstream oxygen sensor.
If the fault has still not been cured, continue with the checks.
Check:
– the condition of the air filter,
– that the air inlet circuit is not blocked,
– the condition and conformity of the spark plugs,
– that the catalytic converter is not clogged,
– the sealing between the throttle valve and inlet manifold,
– the manifold pressure sensor sealing,
– the fuel vapour absorber bleed, which must not be jammed open,
– the fuel vapour absorber bleed system sealing,
– the brake servo system sealing,
– the cylinder head oil vapour recovery system sealing,
– the sealing between the inlet manifold and cylinder head,
– the exhaust pipe sealing between the cylinder head and catalytic converter.
– the fuel flow rate and pressure.
JSAA741.0
Page 179 of 181
PETROL INJECTION
Fault finding – Fault Finding Chart17B
17B - 179V12 MR-372-J84-17B000$900.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
ALP 2 The engine will not start
NOTESFollow ALP 2 after a complete check with the diagnostic tool.
(Use the relevant section in the Workshop Repair Manual to carry out certain
operations).
WARNING
Never drive the vehicle without checking first that there are no throttle valve
faults.
If the starter motor does not operate, there may be a fault with the engine immobiliser.
Carry out a fault finding procedure on the UCH.
Check the condition of the battery.
Check the cleanliness, condition and tightness of the battery terminals.
Check that the battery is correctly earthed to the vehicle bodywork.
Check that the + battery leads are correctly connected.
Check that the starter motor is properly connected.
Check that the starter works (see MR 364 Mechanics, 16A, Starting-charging).
Check the condition and conformity of the spark plugs.
Check the mounting, cleanliness and condition of the flywheel signal sensor.
Check the flywheel signal sensor air gap.
Check the condition of the flywheel.
Check that the air filter is not clogged.
Check that the air inlet circuit is not blocked.
Check that there is fuel in the tank (fuel sender fault).
Check that the tank vent is not blocked.
Check that the fuel is of the correct type.
Check that there are no leaks in the fuel system, from the tank to the injectors.
Check that there are no kinked hoses (especially after a removal operation).
Check the fuel flow rate and pressure.
Check the sealing of the injectors, and that they are working properly.
Check that the exhaust system is not blocked and the catalytic converter not clogged.
Check the timing setting.
Check the cylinder compressions.
Check the hydraulic tappets if there is camshaft noise.
AFTER REPAIRRepeat the conformity check from the start.
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