Page 67 of 208
FUEL MIXTURE
Specifications
12
DESCRIPTIONMAKE/TYPESPECIAL NOTES
Computer SAGEM or
MAGNÉTI MARÉLLI
35 tracks on manual gearbox vehicles without option
55 tracks on air conditioning vehicles
Injection - Multipoint with semi-sequential regulation
Ignition
-Static with 2 dual output
monobloc coils
Power module integral
in computer
One pinking sensor
tightening torque : 2.5 daN.m
TDC sensor - Resistance 220 Ω
Plugs
EYQUEM : RFC50LZ2E
NGK : BKR5EKGap: 0.9 mm
Tightening torque: 2.5 to 3 daN.m
Fuel filter - Mounted under vehicle in front of fuel tank
Replaced during major service
Fuel pump
WALBROSubmerged in fuel tank
Flow: at least 80 litres/hour at a regulated pressure
of 3 bars and a voltage of 12 V
Pressure regulator
-Regulated pressure
Zero vacuum :3 ± 0.2 bars
Vacuum of 500 mbars :2.5 ± 0.2 bars
Solenoid injectors
SIEMENSVoltage:12 Volts
Resistance :14.5 ± 1 Ω
Tracks Resistance
1 - 2 1.5 Ω
1
- 4 |1 - 3
2 -3 | 2 - 41 Ω
3 - 4 0.6 Ω
HT - HT8 KΩ
D7F engine
12-2
Page 68 of 208
FUEL MIXTURE
Specifications
12
DESCRIPTIONMAKE/TYPESPECIAL NOTES
Throttle bodyMAGNETI MARELLI
873 633diameter 36 mm
Idle speed regulation stepping
motor
AIR PAXVoltage: 12 V (at high frequency)
Resistance : tracks A-D100 ± 10 Ω
tracks B-C100 ± 10 Ω
Throttle position
potentiometer
-Voltage: 5 V
Resistance :
Fuel vapour rebreathing
canister
Solenoid valve-Voltage:12 Volts
Resistance :35 ± 5 Ω
Heated oxygen sensor BOSCH Voltage at 850 °C
Rich mixture > 625 mvolts
Lean mixture : 0 to 80 mvolts
Heating resistance, tracks A-B : 3 to 15 Ω
Tightening torque : 5 daN.m
Diagnostic function
FICHE n° 27
CODE D13
SELECTOR S8
Throttle potentiometer:
Regulated idle speed :10 ≤ # 17 ≤50
Full load :185 ≤ # 17 ≤240
Idle speed R.C.O. :4 % ≤ # 12 ≤14 %
Adaptive idle speed R.C.O. :- 4.3 % ≤ # 21 ≤+3.9 %
Adaptive richness operation
:106 ≤ # 30 ≤150
Adaptive idle speed richness :106 ≤ # 31 ≤150
Track No load Full load
AB
AC
BC1300 Ω
1360 Ω
2300 Ω1300 Ω
2350 Ω
1260 Ω
D7F engine
12-3
Page 70 of 208
FUEL MIXTURE
Specifications
12
DESCRIPTIONMAKE/TYPESPECIAL NOTES
ComputerSIEMENS
FENIX 555tracks
Injection - Multipoint with semi-sequential regulation
Ignition
-Static with 2 dual output
monobloc coils
Power module integral
in computer
One pinking sensor
tightening torque : 2.5 daN.m
TDC sensor - Resistance 220 Ω
Plugs
EYQUEM : RFC52LS
CHAMPION
: RC10PYC
Gap: 0.9 mm
Tightening torque: 2.5 to 3 daN.m
Fuel filter - Mounted under vehicle in front of fuel tank
Replaced during major service
Fuel pump
WALBROSubmerged in fuel tank
Flow: at least 80 litres/hour at a regulated pressure
of 3 bars and a voltage of 12 V
Pressure regulator
-
Regulated pressure
Zero vacuum :3 ± 0.2 bars
Vacuum of 500 mbars :2.5 ± 0.2 bars
Solenoid injectors
SIEMENSVoltage:12 Volts
Resistance :14.5 ± 1 Ω
Tracks Resistance
1 - 2 0.5 Ω
1 - 3
2 -31 Ω
HT - HT10 KΩ
E7J engine
12-5
Page 71 of 208
FUEL MIXTURE
Specifications
12
DESCRIPTIONMAKE/TYPESPECIAL NOTES
Throttle bodyPIERBURG
714 227diameter 41 mm
Idle speed regulation stepping
motor- Voltage: 12 V (at high frequency)
Resistance : tracks A-D52 ± 5 Ω
tracks B-C52 ± 5 Ω
Throttle position
potentiometer
-Voltage: 5 V
Resistance :
Fuel vapour rebreathing
canister
Solenoid valve
DELCO REMYVoltage:12 Volts
Resistance :35 ± 5 Ω
Heated oxygen sensor NGK Voltage at 850 °C
Rich mixture > 625 mvolts
Lean mixture : 0 to 80 mvolts
Heating resistance, tracks A-B : 3 to 15 Ω
Tightening torque : 4.5 daN.m
Diagnostic function
FICHE n° 27
CODE D13
SELECTOR S8
Throttle potentiometer:
Regulated idle speed :16 ≤ # 17 ≤50
Full load :185 ≤ # 17 ≤243
Idle speed R.C.O. :2 % ≤ # 12 ≤15 %
Adaptive idle speed R.C.O. :- 2.4% ≤ # 21 ≤+6.2 %
Adaptive richness operation
:64 ≤ # 30 ≤192
Adaptive idle speed richness :64 ≤ # 31 ≤192
Track no load full load
1-2
1-3
2-35440 Ω
4500 Ω
2160 Ω2200 Ω
4460 Ω
5340 Ω
E7J engine
12-6
Page 72 of 208
FUEL MIXTURE
Throttle body
12D7F engine
Throttle body mounting bolt on
inlet manifold 1
Throttle body stiffening bracket
mounting bolt on cylinder head 1
TIGHTENING TORQUES (in daN.m)
There are no special notes for removal - refitting.
12-7
Page 73 of 208
FUEL MIXTURE
Throttle body
12
Throttle body mounting bolt 1
TIGHTENING TORQUES (in daN.m)
REMOVAL
Disconnect the battery.
Remove the air filter.
Remove the air intake pipe (1).
Disconnect:
- the accelerator cable,
- the connectors :
• of the stepping motor (2),
• of the throttle potentiometer (3).
E7J engine
Remove the four throttle body mounting bolts (5)
and remove the throttle body.
REFITTING
Replace the throttle body seal.
Refitting is then the reverse of removal.
13339R113338R
12-8
Page 74 of 208
FUEL MIXTURE
Inlet manifold
12D7F engine
TIGHTENING TORQUES (in daN.m)
There are no special notes for removal - refitting
TIGHTENING TORQUES (in daN.m)
Injector gallery mounting bolt on manifold 1
Manifold mounting nut on cylinder head 1.7
Manifold mounting stud on cylinder head 1
12-9
Page 75 of 208
FUEL MIXTURE
Inlet manifold
12
Inlet manifold bolt and nut 2
TIGHTENING TORQUES (in daN.m)
REMOVAL
Remove:
- the air filter,
- the injector gallery (see section 13).
Lift the vehicle.
Remove the strut (1) (to gain access to the bolt
fixing the strut on the right-hand side of the vehi-
cle, remove the mudguard and the right-hand
wheel).
E7J engine
13339R2
Disconnect the accelerator cable and the electrical
connectors (2) connected to the throttle body.
Remove the bolts and nuts (3) securing the mani-
fold. Lower the vehicle.
Remove the air intake pipe (A) connecting the
throttle body to the air filter.
13335-1R
13130R
12-10