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 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
Page 79 of 208
FUEL MIXTURE
Inlet/Exhaust manifolds
12F8Q engine
Manifold mounting studs on cylinder head 1
Manifold mounting nuts on cylinder head 2.7
Inlet manifold strut mounting bolt 2.5
Cylinder block strut mounting bolt 2.5
TIGHTENING TORQUES (in daN.m)
REMOVAL
Remove the air filter (two mounting bolts at the
top, two mounting nuts at the bottom (1)).
Remove, from above, the two nuts fixing the ex-
haust downpipe to the manifold.
Slacken, without removing it, the nut on the
clamp connecting the downpipe to the exhaust
pipe.
Tilt the exhaust downpipe towards the gearbox.
Remove the nuts securing the manifolds:
- nuts (A) from above,
- nuts (B) from below.
PRO12.1
Special note
To remove nut (C) located above the starter mo-
tor, use a small ratchet (6.35 mm square) and a
universal joint.
13047-1R1
13047R
12-14
Page 80 of 208
FUEL MIXTURE
Inlet/exhaust manifolds
12F8Q engine
REFITTING
Replace the manifold gaskets (metal part of the
gasket on the manifold side).
Replace the gaskets between the inlet manifold
and the air filter.
Replace the steel gasket between the exhaust ma-
nifold and the exhaust downpipe.
For the other operations, refitting is the reverse of
removal.
12-15
Page 85 of 208
FUEL SUPPLY
Injector gallery
13
In order to remove an injector, remove the clips at
(8), then pull on the injector .
99373R
IMPORTANT: during the opening of the fuel cir-
cuit , be sure to use a cloth to avoid possible pro-
jections of fuel due to the residual pressure.
REMOVAL
Disconnect the battery.
Remove the air filter.
Remove:
- the fuel supply pipe (1)
- the fuel return pipe (2)
- the fuel pressure regulator pipe (3) .
Remove the three bolts (4) mounting the injector
gallery (5).
Remove the injector gallery.E7J Engine
13244R
REFITTING
Replace the O rings at the base of the injector (if
the injector has been removed, also replace the
seal which is level with the injector head).
To ensure that the fuel supply unions are correct-
ly fastened, it is necessary to hear a"click" sound
whilst fastening.
For all other operations, refitting is the reverse of
removal .
13-5
Page 96 of 208
DIESEL EQUIPMENT
Location of components
13
1 EGR valve and solenoid valve
2 Air temperature sensor (white connector)
3 Coolant temperature sensor (white connector)
4 Diesel injection computer
5 Fuel filter
6 Pre-postheating plug relay housing
7 TDC sensor
8 Fast idle solenoid valve
9 Electrical solenoid / coded solenoid
10 Digital DPC injection pump
11 Load potentiometer
12 Advance solenoid valve
13 Altimetric corrector
14 Injector with sensor (needle lift)
12874
13-16
Page 97 of 208
DIESEL EQUIPMENT
Location of components
13
12Advance solenoid valve
14Injector with sensor
13Altimetric corrector
11Load potentiometer
9Electrical solenoid / coded solenoid valve
8Idle speed solenoid valve
12869-1R
3Coolant temperature sensor
2Air temperature sensor
6Pre-postheating plug relay housing
5Fuel filter
16Inertia switch
4Injection computer
13083R
12872R
19 EGR solenoid valve
12871R
13-17
Page 101 of 208
DIESEL EQUIPMENT
Advance solenoid valve
13
ITB191917
REFITTING
It is VITAL to remove the small filter (3) situated at
the bottom of the system, using a pair of thin-
nose pliers, and replace with a new filter.
The outer part serves as a seal and locks on
tightening the actuator.
Replace, in the following order : the seal at (4) of
the "banjo" return connection (5) ; the new
activator (1) fitted with an external filter, along
with the the two seals at (6) and (7).
Tighten the actuator to a torque of 3 daN.m
using socket Mot. 997-01.
Place the new protective cover (2)on the actuator.
Reconnect the two terminals to the connector.
Reconnect the connector itself.
Replace the protective sheath on the wiring,
along with the retaining clip.Bleed the diesel circuit using the priming pump
before starting the engine.
It is IMPERATIVE to erase the computer memory
by pressing G0**.
It is vital to road test the vehicle after the
operation.
13127R
13-21