section FIAT MAREA 2001 1.G Workshop Manual

Marea- Marea Weekend Summary
TECHNICAL SERVICE MANUAL COMPOSITION
At present, June 2001, the Marea-Marea Weekend 4th volume manual is composed of the following
sections
Print N° Sections Page
Nos. Notes
506.763/18
(XI/1999)
00 1 - 12 Marea bipower technical data (99 range)
506.763/18
(XI/1999) 10 1 - 59 Marea bipower fuel system (99 range) 506.763/18
(XI/1999)
55 1 - 2 Marea bipower wiring diagram (99 range)
506.763/21
(IX/2000) 10
1 - 38 Marea bipower (99 range) fault diagnosis
506.763/21
(IX/2000) 10
60 - 61
Marea bipower (99 range) fuel system
Replacing solenoid valve on methane canister
506.763/23
(IX/2000)
00 1 - 51 2000 range technical data
506.763/23
(IX/2000)
10
1 - 7 Fuel system l^pl i6v 2000 range
506.763/23
(IX/2000)
10
1 - 7 Fuel system l^pt 20v 2000 range 506.763/23
(IX/2000)
50 1 - 4 2000 range climate control
506.763/23
(IX/2000)
55
1 - 18 2000 range electrical equipment
506.763/23
(IX/2000)
55
1 - 141 2000 range wiring diagrams
506.763/24
(XII/2000)
00
15 - 16 2000 range technical data update
506.763/24
(XII/2000)
00
1 - 3 Marengo 2000 range technical data
506.763/24
(XII/2000)
10 1 - 29 Fuel system l^p) JTD 2000 range
506.763/24
(XII/2000)
55 5 - 8
19-52 2000 range electrical equipment update
Copyright by Fiat Auto

Summary Marea- Marea Weekend
Print N° Sections Page
Nos. Notes
506.763/24
(XI1/2000) 55
Index
11-14
27 - 28
47 - 48
83 - 88
99 - 100
103 - 104
2000 range wiring diagrams update
506.763/25
VI/2001)
00 1 - 2
Marea Weekend 1910 JTD - 100 CV Introduction -
Technical data 506.763/25
VI/2001)
10
5 - 6
25 - 26
29 - 37
1910 JTD 2000 range fuel system update
Print n° 506.763/25

Marea - Marea Weekend Summary
TECHNICAL SERVICE MANUAL COMPOSITION
As of December 2000, the Marea-Marea Weekend 4th volume manual is composed of the sections
listed below
Print N° Sections Page
Nos. Notes
506.763/18
(XI/1999)
00 1 - 12 Marea bipower technical data (99 range)
506.763/18
(XI/1999) 10 1 - 59 Marea bipower fuel system (99 range) 506.763/18
(XI/1999)
55 1 - 2 Marea bipower wiring diagram (99 range)
506.763/20
(IV/2000)
00 1 - 15 Marea GPL technical data
506.763/20
(IV/2000) 10 1 - 26 Marea GPL fuel system 506.763/20
(IV/2000)
55 1 - 9 Marea GPL wiring diagram
506.763/21
(IX/2000) 10
1 - 38 Marea bipower fault diagnosis (99 range)
506.763/21
(IX/2000) 10
60 - 61 Marea bipower fuel system (99 range)
Replacing solenoid on methane canister
506.763/23
(IX/2000)
00 1 - 50 2000 range technical data
506.763/23
(IX/2000)
10
1 - 7 2000 range lev fuel system
506.763/23
(IX/2000)
10
1 - 7 2000 range ^||) 20v fuel system 506.763/23
(IX/2000)
50 1-4 2000 range climate control system
506.763/23
(IX/2000)
55
1 - 18 2000 range electrical equipment
506.763/23
(IX/2000)
55
1 - 141 2000 range wiring diagrams
Copyright by Fiat Auto

Marea- Marea Weekend Summary
TECHNICAL SERVICE MANUAL COMPOSITION
At present, September 2000, the Marea-Marea Weekend 4th volume manual is composed of the fol­
lowing booklets
Print N° Sections Page
Nos. Notes
506.763/18
(XI/1999)
00 1 - 12 Technical data on Marea bipower (99 range)
506.763/18
(XI/1999) 10 1 - 59 Marea bipower fuel system (99 range) 506.763/18
(XI/1999)
55 1 - 2
Marea bipower electrical equipment wiring diagrams (99
range)
506.763/20
(IV/2000)
00 1 - 15 Marea GPL technical data
506.763/20
(IV/2000) 10 1 - 26 Marea GPL fuel system 506.763/20
(IV/2000)
55 1 - 9 Marea GPL electrical equipment wiring diagram
506.763/21
(IX/2000) 10
1 - 38 Marea bipower fault diagnosis (99 range)
506.763/21
(IX/2000) 10
60 - 61
Marea bipower fuel system (99 range)
Replacing solenoid valve on methane canister
506.763/23
(IX/2000)
00 1 - 50 Technical data 2000 range
506.763/23
(IX/2000)
10
1 - 7 Fuel system @> 16v 2000 range
506.763/23
(IX/2000)
10
1 - 7 Fuel system l^l 20v 2000 range
506.763/23
(IX/2000)
50 1 - 4 Climate control system 2000 range
506.763/23
(IX/2000)
55
1 - 18 Electrical equipment 2000 range
506.763/23
(IX/2000)
55
1 - 141 Electrical equipment wiring diagrams 2000 range
Copyright by Fiat Auto

Marea-Marea Weekend Introduction
2000 range (§) Identification data
OO.o
CHASSIS ENGINE VERSION MAREA MAREA
WEEKEND
GEARBOX
CHASSIS ENGINE VERSION MAREA MAREA
WEEKEND 999
666
ZFA 185 000
182B6.000
185AXR1A 25 •
•
ZFA 185 000
182B6.000
185BXR1A 26 •
•
ZFA 185 000
182B6.000
185AXR11 27 •
•
ZFA 185 000
182B6.000
185BXR11 28 •
•
ZFA 185 000
185A8.000
185AXS1A29 •
•
ZFA 185 000
185A8.000
185BXS1A30 •
•
ZFA 185 000
186A6.000
185AXT1A 31 •
•
ZFA 185 000
186A6.000
185BXT1A 32 •
•
NOTE
This section deals with the EEC F3 2000 range engine types.
For the subjects not dealt with, refer to the Marea-Marea Weekend manual print n° 506.763 and subse­
quent updates.
Copyright by Fiat Auto 1

Marengo^™ Introduction and technical data
2000 range Index
oo.
page
INTRODUCTION
- Identification data 1
- Dimensions 1
- Weights 2
- Performance 2
- Fuel consumption 2
TECHNICAL DATA
- Front suspension 3
- Rear suspension 3
NOTE
This section gives technical data for the Fiat Marengo 2000 range equipped with a 1910 JTD EC F3 en­
gine. For further information, see the Fiat Marea - Fiat Marea Weekend manual publication no. 506.763
and subsequent updates
Copyright by Fiat Auto

Marea- Marea Weekend •
2000 range ©
Engine
Fuel feed system
10.
REMOVING-REFITTING ACCELEROMETER
Removing
- Disconnect the negative battery terminal.
1. Disconnect the electrical connector (1a),
undo the fixing bolts (1b) and remove the
device (1c).
Refitting
- Reverse the order of the operations carried
out for the removal.
REMOVING-REFITTING FRONT LAMBDA
SENSOR
Removing
- Position the vehicle on a lift.
- Disconnect the negative battery terminal.
- Raise the lift.
2. Undo the lower fixing bolts (1a) and the
side fixing bolts (1b) and remove the
shield (1c) under the engine.
3. Undo the fixing nuts (1a) and remove the
lower section (1 b) of the heat shield.
4. Disconnect the electrical connector (1a)
and undo the front Lambda sensor (1b).
Copyright by Fiat Auto 3

Marea-Marea Weekend •
2000 range (§)
4F005WJ02
Engine
Fuel feed system
10.
REMOVING-REFITTING HEAT
SHIELD
Removing
- Position the vehicle on a lift.
- Disconnect the negative battery terminal.
1. Undo the fixing bolts (1a) and remove the
air duct (1b).
2. Open the retaining band (1a) and place the
engine coolant return pipe to the radiator
(1b) at the side in order to undo the bolts
(1c) fixing the upper section of the heat
shield.
3. Undo the upper bolts (1a) fixing the fan
and disconnect the electrical connector
(1b).
4F005WJ03
Copyright by Fiat Auto 5

Marea- Marea Weekend 9
2000 range ©
Engine
Fuel feed system
10.
TURBOCHARGER (1910 JTD 110 CV)
The turbocharger used in the application of the
EURO 3 standards in the variable geometry
type connected to the exhaust manifold.
The turbocharger is controlled by the engine
management control unit via a duty-cycle so­
lenoid valve.
The increased volumetric output for the engine
is achieved, in the case of variable geometry
compressors, through the use of:
- a centrifugal compressor (1)
- a turbine (2)
- a series of moving vanes (3)
- a pneumatic actuator (4) controlling the
moving vanes.
- asolenoid valve (5) controlling the actuator
The variable geometry turbocharger makes it
possible to:
- increase the speed of the exhaust gases in
the turbine at low engine speeds
- slow down the speed of the exhaust gases
in the turbine at high speeds.
The control of the speed (kinetic energy) of
the exhaust gases makes it possible to pro­
duce increased engine torque at low speeds
and greater maximum power at high speeds.
Operation at low rotation speeds
When the engine is operating at low speeds,
the exhaust gases possses little kinetic energy:
under these circumstances a conventional tur­
bine would rotate slowly, supplying a limited
supercharging pressure.
On the other hand, in the variable geometry
turbine (1), the moving vanes are in the
maximum closure position and the small pas­
sage sections between the vanes increase the
speed (C) of the intake gases.
Increased intake speeds lead to increased pe­
ripheral speeds (U) of the turbine and, conse­
quently, the compressor.
The speed of the gases inside the impeller is
indicated by the vector (W).
1. Turbine
2. Moving vanes
3. Pneumatic actuator
4. Rotary seal
Copyright by Fiat Auto r VI-01-Cancels arwl replaces.25

Engine
Fuel feed system
JTD Marea- Marea Weekend 9
2000 range @
10.
Operation at high rotation speeds
When the engine speed is increased, the ki­
netic energy of the exhaust gases increases
gradually.
As a result, the speed of the turbine (5) in­
creases and consequently the supercharging
pressure.
The VGT solenoid valve (2) operated by the
injection control unit (1), through the actuator
(4) causes the moving vanes to change posi­
tion until the maximum opening position is
reached.
1. Injection control unit
2. VGT solenoid valve
3. Vacuum reservoir
4. Pneumatic actuator
5. Turbine
There is therefore an increase in the passage
sections and consequently a slowing down in
the flow of exhaust gases which pass through
the turbine (1) at the same speed or slower
than the low speed conditions.
The speed of the turbine (1) decreases and
settles down at a suitable vaule for the correct
operation of the engine at high speeds.
1. Turbine
2. Moving vanes
3. Pneumatic actuator
4. Rotary seal
TURBOCHARGER (1910 JTD 100 CV)
It basically consists of two impellers (1) on
one shaft (2) which rotates on floating bear­
ings lubricated by a duct (3) from the engine
lubrication circuit.
The oil used dissipates some of the large
amount of heat given off by the exhaust gases
at the turbine.
There is a waste gate valve (4) fitted on the
turbocharger, operated by a pneumatic actua­
tor (5), that makes it possible to shutter the
flow of exhaust gases to the turbine, accord­
ing to the engine power/torque requirements.
The pneumatic actuator is controlled by the en­
gine management control unit via a solenoid
valve.
* The turbocharger used on the 1910 JTD 100 CV version is the fixed geometry type.
26 VI 0^ Cam.frtfi and ri!plact<& Print n° 506.763/25