sensor RENAULT MEGANE SCENIC 1995 Service Owner's Manual

TOP AND FRONT OF ENGINE
Cylinder head gasket
11F8Q ENGINE
99028R
Diagram for drilling tool Mot. 1159 (diameter 10.5
mm).
Fit the bracket of tool Mot. 1159 under the water
pump.
99310R
98904S
Disconnect:
- the thermostat hoses,
- the connectors for the sensors,- the brake servo pipe,
- the 2 oil vapour rebreathing hoses on the decan-
ter,
- the accelerator cable,
- the preheater plug connector,
- the injection pump connectors,
- the solenoid valve pipes,
- the fuel supply pipe to the diesel fuel filter using
tool Mot. 1311-06
99461R
Remove the cylinder head bolts using the star
socket 55 toolEX 255
FACOM for example.
11-24

FUEL MIXTURE
Specifications
12
Vehicle GearboxEngine
Type SuffixBore
(mm)Stroke
(mm)Capacity
(cm
3)RatioCatalytic
converterDepollution
standard
BA0E JB1 E7J 764 75.8 77 1 390 9.1/1 C44 EU 96
* For a coolant temperature greater than 80°C and at stable engine speed of 2 500 rpm for
approximately 30 seconds.
** For legislative values, refer to specification for individual country.
*** Compatible with OR 91 unleaded.
Temperature in °C (± 1°) 0 20 40 80 90
Air temperature sensor
Type CTN
Resistance in Ohms7 470
to 11 9703 060
to 4 0451 315
to 1 600--
Coolant temperature sensor
Type CTN
Resistance in Ohms-3 060
to 4 0451 315
to 1 600300 to 370 210 to 270
Engine
Type SuffixTests carried out at idle speed*
Engine
speed
(rpm.)Emission of pollutants **
CO (%) CO
2 (%) HC (ppm) Lambda (λ)Fuel ***
(minimum octane
rating)
E7J 764 750±500.3
maximum14.5
minimum100
maximum0.97<λ<1.03 Unleaded (OR 95)
Engine
Type SuffixComputer Supplier’s No.Homologation
No.RENAULT No.
(G70*)
E7J 764 SIEMENS 35 tracks (FENIX 3) S 111 730 108 B 77 00 864 451 77 00 874 461
12-1

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
Vehicle GearboxEngine
Type SuffixBore
(mm)Stroke
(mm)Capacity
(cm
3)RatioCatalytic
converterDepollution
standard
BA0F Manual K7M 702 79.5 80.5 1598 9.7/1 C45 EU 96
BA0F
AutomaticK7M 703 79.5 80.5 1598 9.7/1 C45 EU 96
BA0L Manual K7M 720 79.5 80.5 1598 9/1 C45 EU 96
* For a coolant temperature greater than 80°C and at stable engine speed of 2 500 rpm for
approximately 30 seconds.
** For legislative values, refer to specification for individual country.
*** Compatible with OR 91 unleaded.
Temperature in °C (± 1°) 0 20 40 80 90
Air temperature sensor
Type CTN
Resistance in Ohms7 470
to 11 9703 060
to 4 0451 315
to 1 600--
Coolant temperature sensor
Type CTN
Resistance in Ohms-3 060
to 4 0451 315
to 1 600300 to 370 210 to 270
Engine
Type SuffixTests carried out at idle speed*
Engine
speed
(rpm.)Emission of pollutants**
CO (%) CO
2 (%) HC (ppm) Lambda (λ)Fuel ***
(minimum octane
rating)
K7M702
720720±500.3
maximum14.5
minimum100
maximum0.97<λ<1.03 Unleaded (OR 95)
K7M 703 750±500.3
maximum14.5
minimum100
maximum0.97<λ<1.03 Unleaded (OR 95)
Engine
Type SuffixComputer Supplier’s No.Homologation
No. RENAULT No.
(G70*)
K7M 702 SIEMENS 55 tracks (FENIX 5) S 105 300 101 D 77 00 860 319 77 00 863 499
K7M 703 SIEMENS 55 tracks (FENIX 5) S 105 300 201 C 77 00 860 337 77 00 869 818
K7M 720 SIEMENS 55 tracks (FENIX 5) S 105 300 104 B 77 00 864 454 77 00 865 827
12-3

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
Vehicle GearboxEngine
Type SuffixBore
(mm)Stroke
(mm)Capacity
(cm
3)RatioCatalytic
converterDepollution
standard
BA0G Manual F3R 750 82.7 93 1998 9.8/1 C47 EU 96
* For a coolant temperature greater than 80°C and at stable engine speed of 2 500 rpm for
approximately 30 seconds.
** For legislative values, refer to specification for individual country.
*** Compatible with OR 91 unleaded.
Temperature in °C (± 1°) 0 20 40 80 90
Air temperature sensor
Type CTN
Resistance in Ohms7 470
to 11 9703 060
to 4 0451 315
to 1 600--
Coolant temperature sensor
Type CTN
Resistance in Ohms-3 060
to 4 0451 315
to 1 600300 to 370 210 to 270
Engine
Type SuffixTests carried out at idle speed*
Engine
speed
(rpm.)Emission of pollutants **
CO (%) CO
2 (%) HC (ppm) Lambda (λ)Fuel ***
(minimum octane
rating)
F3R 750 770±500.3
maximum14.5
minimum100
maximum0.97<λ<1.03 Unleaded (OR 95)
Engine
Type SuffixComputer Supplier’s No.Homologation
No. RENAULT No.
(G70*)
F3R 750 SIEMENS 55 tracks (FENIX 5) S 103 717 101 B 77 00 868 299 77 00 874 462
12-5

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
PRESENTATION
94542R
1Air temperature sensor
2Fuel pressure regulator
3Fuel return to fuel tank
4Fuel supply
5Throttle opening motor
6Monopoint injector
Connector (A)
Injector and air temperature sensor operations
1 and 4Air temperature sensor
2+monopoint injector
3 - monopoint injector
Connector (B)
Idle speed regulation and low load switch
operations
1 + or -Motor feed
2 - or +Motor feed
3 and 4Low load switchConnector (C)
Throttle potentiometer operation
1Earth
2+ 5 V feed
4Throttle position information (voltage
changes between 0 and 5 V)
5Not used
The throttle body has two sections:
• The upper section is known as the injection
section (D).
• The lower section is known as the throttle
section (E).
NOTE : when the unit is removed, the two sections
are joined together by plastic clips. Squeeze the
end of the clips to separate the two sections.
94543-2R3
12-7

FUEL MIXTURE
Throttle body
12
E7J engine
REMOVAL
Remove the air filter.
Disconnect:
- connectors (A) (B) and (C),
- the fuel supply pipes (1) and return pipes (2),
- the accelerator control cable (3).
Remove the mounting bolts (4) and remove the
throttle body.
94544R
REFITTING
Replace the seals between the manifold and the
throttle body.
Reconnect:
- the fuel supply and return pipes, ensuring the
connectors are correctly clipped back together,
- the accelerator control and refit the air filter.
AIR TEMPERATURE SENSOR
REMOVAL
Remove the air filter.
Disconnect the connector.
Remove bolt (1) and lift cover (2).
Release the wires from mounting (3).
Remove the connector (4) after releasing hooks
(5).
94541R
REFITTING
Check the connectors are correctly clipped in.
12-8

FUEL MIXTURE
Throttle body
12
K7M engine
Throttle body mounting bolt
on inlet manifold 2
TIGHTENING TORQUES (in daN.m)
REMOVAL
Remove the acoustic tie bar.
Disconnect:
- the air temperature sensor (1),
- the oil vapour rebreathing pipe (2) on the
rocker box cover.
Slacken the clips (3) mounting the air sleeve (4) to
the air filter and the throttle body, then remove
the sleeve.
99359R
Disconnect :
- the accelerator cable (5),
- the throttle position potentiometer connector
(6),
- the idle speed regulation stepping motor
connector (7).
99357R
Remove the four bolts mounting the throttle
body and remove the throttle body.
99358-1R
12-11