ignition RENAULT MEGANE SCENIC 1995 Service Repair Manual

Engine and peripherals
"The repair methods given by the manufacturer in this document are based on the
technical specifications current when it was prepared.
The methods may be modified as a result of changes introduced by the
manufacturer in the production of the various component units and accessories
from which his vehicles are constructed."All copyrights reserved by the Regie Nationale des Usines Renault.
Copying or translating, in part or in full, of this document or use of the service part
reference numbering system is forbidden without the prior written authority of the
Regie Nationale des Usines Renault.
CRégie Nationale des Usines Renault S.A.1995
ENGINE AND PERIPHERALS
TOP AND FRONT OF ENGINE
FUEL MIXTURE
FUEL SUPPLY - PUMPS
ANTIPOLLUTION
STARTING CHARGING
IGNITION - INJECTION
COOLING - EXHAUST - FUEL TANK
77 11 176 211SEPTEMBER 1995Edition Anglaise
BA0A - BA0E - BA0F - BA0G - BA0L - BA0U
cont INJECTION (Fault finding)

Page
COOLING
Specifications
Filling - bleeding
Checking
Radiator
Diagram
Exhaust
General
Catalytic converter
Exhaust pipe assembly
Fuel tank
Fuel tank
Filler neck
Gauge
Pump and sender unit
Engine suspension
Suspended engine mountings
Engine mounting pads19-1
19-2
19-3
19-4
19-6
19-12
19-15
19-16
19-19
19-23
19-25
19-26
19-29
19-32 COOLING - EXHAUST- FUEL TANK -
ENGINE SUSPENSION
1916-1
16-9 STARTING - CHARGING
Alternator
Starter motor
16
IGNITION - INJECTION
IGNITION
Power module
Static ignition
Spark plugs
Injection
General
Location of components
Special notes on semi-sequential
injection
Special notes on sequential injection
Injection fault warning light
Engine immobiliser function
Computer configuration as a
function of the gearbox type
17
14-1
14-9
14-13
14-19
14-21
14-22 ANTIPOLLUTION
Fuel vapour recirculation
Oil vapour rebreathing
Exhaust gas recirculation (EGR)
Catalytic converter
Catalytic converter - oxygen sensor
Test for the presence of lead
14
17-28
17-29
17-32
17-33
17-34
17-36
17-39 IGNITION - INJECTION
(continued)
Injection strategy / automatic
transmission
Injection strategy / air conditioning
Idle speed correction
Idle speed adaptive correction
Richness regulation
Adaptive richness correction
Operating wiring diagram
17
Page
17-1
17-2
17-5
17-6
17-12
17-17
17-19
17-24
17-25
17-26
Contents

ENGINE AND PERIPHERALS
Engine - Gearbox
10
E7J engine
98714R
- the relay plate and the engine connection unit
connector.
98756R
Remove the pipe from the brake servo.
Disconnect the thermistor and the fan unit feed.
Remove:
- the absolute pressure sensor,
- the ignition module,
- the fuel pipes,
- the earth strap,
- the pipe from the canister solenoid valve,
- the injection computer and secure it to the
engine,
- the starter feed wire from the battery.
Disconnect the injection feed wire located in the
scuttle panel.
98754R
Position the load positioning tool.
Lift the engine to remove the three bolts and the
engine tie-bar mounting.
Remove the engine.
REFITTING
Refitting is the reverse of removal.
Fill the gearbox and the cooling circuit and bleed
the circuit (see section 19).
NOTE: ensure the heat shields are correctly
positioned.
10-6

ENGINES AND PERIPHERALS
Engine and transmission assembly
10
E7J Engine
SPECIAL TOOLING
Mot. 1040-01 Dummy cradle for removing and
refitting the engine and
transmission assembly
Mot. 1202 Hose clip pliers
Front sub-frame mounting bolt 6
Rear sub-frame mounting bolt 11
Upper shock absorber cup mounting bolt 3
Wheel bolts 9
Brake caliper mounting bolt 3.5
Universal steering joint mounting bolt 3.5
TIGHTENING TORQUES (in daN.m)
REMOVAL
Put the vehicle on a 2 post lift.
Disconnect:
- the battery,
- the relay plate and the engine connection unit
electrical connector,
98756R
- the connectors of the ignition module and the
HT coil wire,
- the oxygen sensor connector,
- the accelerator and clutch cables.
Drain:
- the cooling circuit,
- the engine if necessary,
- the gearbox (by removing the cover) if
necessary.
Remove:
- the earth strap,
- the air filter,
- the nut and the eccentric bolt (1) (remove
using a roll pin punch) from the steering shaft
yoke after having pushed the protector back.
97390-1R
10-19

FUEL MIXTURE
Specifications
12
DESCRIPTION MAKE/TYPE SPECIAL NOTES
ComputerSIEMENS FENIX 335 tracks
Injection Regulated monopoint injection
Ignition Advance laws integral in injection computer
Ignition power module
Pinking sensor
Plugs
EYQUEM FC 52 LS
NGK BCP 5 ESGap: 0.9 mm
Tightening torque: 2.5 to 3 daN.m
Fuel filter Mounted in front of the fuel tank under the vehicle
Fuel pump
WALBROSubmerged in fuel tank
Flow: 50 litres/hour minimum
Pressure: 1.06 bar
Pressure regulator Pressure 1.06 bar (non-adjustable)
Solenoid injector Voltage: 12 V
Resistance : ≈ 2 Ω
Throttle body BOSCH Diameter 36 mm
Idle speed regulation
micromotorNon-adjustable
Integral no load switch
Fuel vapour recirculation
canister
Solenoid valve
CAN 10Voltage: 12 V
Resistance : ≈ 34.5 Ω
Heated oxygen sensor NGK Voltage at 850°C
Rich mixture : > 625 mvolt
Lean mixture: 0 to 80 mvolt
Tightening torque: 4.5 daN.m
Fault finding Throttle potentiometer
Idle speed regulation: 15≤#17≤30
Full load: 192≤#17≤210
Adaptive richness
operation: 112≤#30≤160
Adaptive richness
idle speed: 104≤#31≤160
12-2

FUEL MIXTURE
Specifications
12
DESCRIPTION MAKE/TYPE SPECIAL NOTES
ComputerSIEMENS FENIX 555 tracks
Injection Semi-sequential regulated multipoint injection
Ignition Static with two dual output coils
Power module integral in computer
One pinking sensor
Plugs
EYQUEM FC 52 LS
CHAMPION C10YCGap: 0.9 mm
Tightening torque: 2.5 to 3 daN.m
Air filter Replace every other oil change
Fuel filter Mounted in front of the fuel tank under the vehicle
Replace at major service
Fuel pump
WALBROSubmerged in fuel tank
Flow: 80 litres/hour minimum for regulated
pressure of 3 bars and voltage of 12 V
Pressure regulator Regulated pressure
Zero vacuum: 3 ± 0.2 bars
Vacuum of 500 mbar : 2.5 ± 0.2 bars
Solenoid injector
SIEMENSVoltage: 12 V
Resistance : 14.5 ± 1 Ω
Throttle body
PIERBURG
714 186Diameter 44 mm
Idle speed regulation stepping
motor
EGR (K7M 703) solenoid valve
PIERBURG
72213000Voltage: 12 V
Resistance : 30 ± 3 Ω
Fuel vapour recirculation
canister
Solenoid valve
CAN 10
DELCO REMY
Voltage: 12 V
Resistance : 35 ± 5 Ω
Heated oxygen sensor NGK Voltage at 850°C
Rich mixture: > 625 mvolt
Lean mixture: 0 to 80 mvolt
Tightening torque: 4.5 daN.m
Fault finding
FICHE n° 27
CODE D13
SELECTOR ON S8
Throttle potentiometer
Idle speed regulation: 5 ≤ #17 ≤ 47
Full load: 164 ≤ #17 ≤ 253
R.C.O. idle speed: 4 % ≤ #12 ≤ 14 % (K7M 720)
6 % ≤ #12 ≤ 15 % (K7M 702/703 in P and N)
10 % ≤ #12 ≤ 20 % (K7M 703 in D)
Adaptive R.C.O
idle speed: - 2.4 % ≤ #21 ≤ + 6.2%
Adaptive richness
operation: 0 ≤ #30 ≤ 208
Adaptive richness
idle speed: 100 ≤ #31 ≤ 255 (K7M 720)
104 ≤ #31 ≤ 255 (K7M 702/703)
12-4

FUEL MIXTURE
Specifications
12
DESCRIPTION MAKE/TYPE SPECIAL NOTES
ComputerSIEMENS FENIX 555 tracks
Injection Sequential regulated multipoint injection
Ignition Static with two dual output coils
Power module integral in computer
One pinking sensor
Plugs
EYQUEM C 52 LS
CHAMPION N7YCX
BOSCH W7DCOGap: 0.9 mm
Tightening torque: 2.5 to 3 daN.m
Air filter Replace every other oil change
Fuel filter Mounted in front of the fuel tank under the vehicle
Replace at major service
Fuel pump
WALBROSubmerged in fuel tank
Flow: 80 litres/hour minimum for regulated
pressure of 3 bars and voltage of 12 V
Pressure regulator WEBER
BOSCHRegulated pressure
Zero vacuum: 3 ± 0.2 bars
Vacuum of 500 mbar : 2.5 ± 0.2 bars
Solenoid injector
SIEMENSVoltage: 12 V
Resistance: 14.5 ± 1 Ω
Throttle body SOLEX
Diameter 60 mmReference: 127 F3R 751 without AC - F3R 750
Reference: 132 F3R 751 AC
Idle speed regulation solenoid
HITACHI
AESP 207-17Voltage: 12 V
Resistance: 9.5 ± 1 Ω
Fuel vapour recirculation
canister
Solenoid valve
CAN 10
DELCO REMY
Voltage: 12 V
Resistance: 35 ± 5 Ω
Heated oxygen sensor
BOSCH LSH 25Voltage at 850°C
Rich mixture: > 625 mvolt
Lean mixture: 0 to 80 mvolt
Tightening torque: 4.5 daN.m
Fault finding
FICHE n° 27
CODE D13
SELECTOR ON S8
Throttle potentiometer
Idle speed regulation: 8 ≤ #17 ≤ 38
Full load: 188 ≤ #17 ≤ 245
R.C.O. idle speed: 20 % ≤ #12 ≤ 40 % (F3R 750)
18 % ≤ #12 ≤ 38 % (F3R 751)
Adaptive R.C.O
idle speed: - 6.2 % or - 8.6 ≤ #21 ≤ + 6.2 %
Adaptive richness
operation: 82 ≤ #30 ≤ 224
Adaptive richness idle speed: 32 ≤ #31 ≤ 224
12-6

FUEL MIXTURE
Throttle body
12
E7J engine
INJECTOR
REMOVAL
Remove the air filter.
Remove the air temperature cover (see previous
page).
Remove the injector (6) from its housing.
94539R
REFITTING
Replace the O rings and lubricate them.
Fit the injector and cover so that they are correctly
aligned and mount the assembly.
REMOVING - REFITTING THE FUEL PRESSURE
REGULATOR
The fuel pressure regulator cannot be adjusted if
it is faulty. The upper section of the throttle body
must be renewed.
IDLE SPEED REGULATION MOTOR
REMOVAL
Remove the air filter.
The motor may be removed without having to
remove the throttle body. Access to the bolts is
made easier however by removing the mounting
bolts for the throttle body and releasing it
without disconnecting the fuel pipes.
Disconnect the motor connector.
Remove the mounting bolts and remove the
motor.
REFITTING
No adjustment may be made. However, ignition
on, if the low load switch bargraph on the XR25 is
not illuminated, fit a shim between the throttle
stop and the micromotor to obtain the no load
switch position.
Turn the ignition on then off; the micromotor
should position itself in the cold start position.
Repeat the operation without the shim, then
check the position of the throttle, ignition on,
engine not running, using the XR25 and #17.
94540S
12-9

DIESEL EQUIPMENT
Special notes
13
ALFB (solenoid controlled load dependence)
ROLE
To eliminate the action of LFB load dependence
(internal drop in pressure in the pump and
therefore advance), depending on the engine
temperature and atmospheric pressure.
OPERATION
1. Control by pre-post-heating unit
a)As long as the coolant temperature is <
29°C, the solenoid valve is fed when the
ignition is turned on.
b)If the coolant temperature sensor is faulty,
the solenoid valve is fed when the ignition
is turned on depending on the air
temperature (the air temperature sensor
is located in the pre-post-heating unit).c)If both the coolant and air temperature
sensors are faulty, the solenoid valve is fed
for 200 seconds when the ignition is
turned on.
LOCATION
Coolant temperature sensor (1) (black connector)
DI130198904R
SPECIFICATIONS
Temperature in °CResistance Ω
252 610 to 2 990
80310 to 350
Coolant temperature sensor faulty
13-18

DIESEL EQUIPMENT
Coded solenoid valve
13
REPLACEMENT
SPECIAL TOOLING REQUIRED
Mot. 1372 Kit for removing self shearing
bolts from computers
REMOVAL
This operation must be carried out with the
ignition turned off.
Remove the oil vapour decanter (1).
DI1410-1
Fit the drilling tube (2) from kit Mot. 1372 into the
computer.
Use:
- the 4 mm diameter drill from kit Mot. 1372 to
drill the two bolts (drilling depth
approximately 3 mm),
- the number 6 extractor from the kit Mot. 1372
to remove the bolts.
99780R
Remove the computer.
REFITTING
Use the self shearing bolts available from the Parts
Department.
Composition of kit Mot. 1372 :
- one 4 mm diameter drill (4)
- one number 6 extractor(3)
- one drilling tube (2)
NOTE :
- take care to remember to replace the plastic
cover on the solenoid valve nut,
- lightly oil the drill to facilitate drilling.
13-28