fuel pressure DACIA SOLENZA 2004 Repair Manual

CHARACTERISTICS
Engine – Clutch - Gearbox .................................. 01-1
Ve hicle identification .......................................... 01-2
LIFTING MEANS
M obile jack – Adjustable supports ..................... 02-1
Elevator positioned under vehic le body .............. 02-2
TOWING
All types .............................................................. 03-1
LUBRICANTS – INGREDIENTS
C ondition ............................................................ 04-1
DRAINING – FILLING
Engine.................................................................. 05-1
Gearbox .............................................................. 05-2
P ower steering ..................................................... 05-3
VALUES AND ADJUSTMENTS
Dimensions .......................................................... 07-1
Weights (kg) ........................................................ 07-2
C apacity - Quality ................................................ 07-3
Accessories belts tension ..................................... 07-4
Wheels, Tires ....................................................... 07-5
Br akes.................................................................. 07-6
Dimensions under carriage body ......................... 07-7
Checking values of the front axle angles .............. 07-8
Checking values of the rear axle angle s .............. 07-9
ENGINE ASSEMBLY
Ingredie nts............................................................ 10-1
Oil consumption ................................................. 10-2
Oil pressur e ......................................................... 10-3
Power tr ain group................................................. 10-4
Sepa ration - Gearbox .......................................... 10-9
Se para tion – Unfitting ......................................... 10-10
Tightening moments ........................................... 10-11
S pecial tools ......................................................... 10-12
C haracteristics ..................................................... 10-13
Dismounting – Remounting ................................. 10-20
Lower casing ...................................................... 10-39
Oil pump .............................................................. 10-41
Mul ti-purpose support ......................................... 10-42
DISTR IBUTIO N SYSTEM
Dis t rib ution belt ........................................................ 11-1
Cy l inder head gasket ............................................... 11-3 FUEL MIX TURE
Characteri stics .......................................................... 1 2 -1
Bo d y valve ................................................................. 1 2 -4
In let man ifo ld ........................................................... 1 2 -5
Exh aust man i fold ...................................................... 1 2 -6
Air fi l ter .................................................................... 1 2 -7 FUEL SUPPLY
Su p ply interruptio n .................................................. 1 3 -1
Fu el ramp .................................................................. 1 3 -2
Pu mp capaci ty ........................................................... 1 3 -3
Su p ply pressure ......................................................... 1 3 -4 ANTI-POLLUTIO N
Pet rol vapors re-as p irat ion ...................................... 1 4 -1
Oil vapors re-as p irat ion ............................................ 1 4 -4 ALTERNATOR – STARTER
Alternat or ................................................................. 1 6 -1
Starter ........................................................................ 1 6 -6 IGNIT ION AND INJECTION
Ig nition system ......................................................... 1 7 -1
Sp ark pl ags ............................................................... 1 7 -3
In ject ion system ....................................................... 1 7 -4
Characteri stics .......................................................... 1 7 -10
In ject ion / ai r co nditioning strat egy ......................... 1 7 -11
Id ling reg ime co rrection ........................................... 1 7 -12
Id ling reg ime ad aptive co rrection ............................ 1 7 -13
Enri ching ad justment ............................................... 1 7 -14
Enri ching ad aptive co rrection .................................. 1 7 -16
“On Board Diagnostic” system ch aracterist ics ....... 1 7 -18
“On Board Diag nostic” li ghting conditions ............. 1 7 -19
“On Board Diag nostic” di agnostic conditions ......... 1 7 -20
Diag nostic of co mbustion mis fires det ection ............ 1 7 -21
Cat alyst diag nostic .................................................... 1 7 -22
Oxy gen sensor diag nostic ......................................... 1 7 -23
Diag nostic – Gen eral ................................................. 1 7 -25
Diag nostic – Fai l ures interp retat ion ......................... 1 7 -26
Diag nostic – Hel p ...................................................... 1 7 -60
Diag nostic – Confo rmity ch ecking ............................ 1 7 -61
Diag nostic – Stat es interpret ation ............................ 1 7 -69
Diag nostic – Paramet ers interp retat ion .................. 1 7 -75
Fai l ure locat ing al gorithm ........................................ 1 7 -83 COOLING - EXHAUST - TANK
Characteri stics .......................................................... 1 9 -1
Fi l ling - Purging ........................................................ 1 9 -2
Checking ................................................................... 1 9 -3
Co o ling system diagram ........................................... 1 9 -4
Rad i ato r ..................................................................... 1 9 -5
Co o ling engine fan fo r vehicles
wit h out ai r co nditioning ............................................ 1 9 -7
Diag nostic – fai lures in terp retat ion at vehicles
wit hout ai r co nditioning ............................................. 1 9 -8
Co o ling engine fan fo r vehicles
General poinds vehicle0
01
02
03
04
05
07
Engine and péripheriques1
10
11
12
13
14
16
17
19
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ENGINE E7J-26212
12 - 2
F UEL M IXTURE
DENOMINATION PARTICU LARITIES
UCE injection SIEMENS - Connector with 90 ways
In jection system Sequential multi-point
I gnition Static with double coil PINI R (W)
I gnition control led by
RA- C0,52
ΩΩΩΩ

± 10%

































UCE in
jectionRB-C0,52
ΩΩΩΩ

± 10%
R 1 -47,2 KΩΩΩΩ ±
10%
R
2-37,2 KΩΩ ΩΩ ±
10%
Characteristics
Detonation sensor Sagem – piezo-electric type
Tightening moment = 2 daNm.
RPM sensor ELECTRICFIL or SIEMENS
R = 200………….270 Ù
Spa rk plugs SAGEM – Type RFC 52 LZ
Ti ghtening moment = 2.5 –3 daNm
Fuel filter For de-pollution norm 1504
Mounted under the vehicle in front the fuel tank.
Replacement at every scheduled checking
For EURO 00 and EURO 96;
Insi de the fue l tank, attached on the fuel pump assembly.
Do not replace it separately.
Feeding pump Immersed in the fuel tank
For de-pol lution norm 1504:
- Flow: 1.3 l/min. Pressure: 3 bars at 12 V ten sion.
For EURO 00 and EURO 96:
- Pressure: 3.5 bars at 12 V tension.
Pressure regulator For de-pollution norm 1504:
Regulator attached on the injection ramp.
Adjusted pressure : 3 ± 0.2 b ars at zero depression
2.5± 0.2 bars at 500 mbars depression
For EURO 00 and EURO 96:
Mounted inside the fuel tank on the fuel pump assembly.
Adjusted pressure : 3.5 bars
Electro-magnetic Injectors SIEMEN S
R = 14.5 Ù ± 5 % AT 20 º C
Supply + 12V
Step by step engine R
A-D = 53 Ù 10% at 25º C
R
B- C = 53 Ù 10% at 25 ºC
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ENGINE E7J-26212
12 - 5
F UEL M IXTURE
TIGHTENING MOMENT (d aN m)
Inlet manifold nuts and screws 2,5
Inlet manifold
32 5 7
416
3
1
42
DISMOUNTIN G
Place the vehicle on a two-columns
elevator. Disconnect the battery.
Dismo unt :
- the air filter assembly;
- the acceleration cable from the body
control lever; - the injection ramp ( see c hapter 13
“Injection ramp”).
Disconnect the electric connectors:
- body position potentiometer ( 1)
- atmospheric pressure sensor (2)
- step-by-step engine (3);
- air temperature sensor( 4)
Disconnect the fuel supply ducts (supply and return)
Disconnect the petrol vapors re-aspiration hose from the inlet manifold.
Uncouple the body control lever and remove the valve body.
Dismount the attachment nuts and screws of the inlet manifold.
Extract the inlet manifold .
REMOU NT I NG
Replace the inlet manifold gaskets.
Tighten at the required moment the inlet manifold nuts and screws, observing the sequence
shown in the drawing.
Perform the dismounting operations in the reverse order.
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MOTEUR E7J-26213
FUEL SUPPLY
13 - 2
Fuel ramp
AT T E N T I O N !
When opening the fuel circuit, protect
by means of a gauze piece against petrol
s plashing due to residual pressure.
DISMOUNTIN G
Disconnect the battery.
Dismount the air filter.
Disconnect:
- pipe 1 for fuel supply;
- pipe 3 for fuel return;
- pipe 4 of the pressure controller.
REMARK:
For EURO 00 and EURO 96, the
pre ssure c ontrol ler and return pi pe are
placed in t he fuel tank.
Dismount the attachment screws ( 2) o f the
fuel ramp. Dismount the ramp. In order to dismount an injector, re trieve
the clip 5, and then extract the injector.
R EMOU NT I NG
Replace the annular gaskets from the
injectors bottom; if t he injector has been
dismounted, the gasket from the injector’s
head will be also replaced.
In order that petrol fuel supply and return
connection a re c orrectly m ounted, a ” clic”
must be heard when connecting. Perform the dismountin g operations in the
reverse order.
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MOTEUR E7J-26213
FUEL SUPPLY
13 - 3
Pump capacity
1
PUMP CAPACITY CHECKING
SPECIAL TOOLS
Pliers for “CLICK” collars.
IMPORTANT
Duri ng this operation, it is obligatory :
- not - sm oki ng a nd not bri ngi ng
incandescent obj ects at the working pl ace; - protect against petrol splashing due
to residual pressure remained in piping
during their dismounting.
VEHICLES WITH FUEL RETURN
The checking of the fuel pump capacity is
recommended to be performed by t he fue l
return hose connected on the level transmitter -
pump assembly .
Disconnect the fuel return pipe ( 1).
Connect on the pipe a hose, one extremity
being introduced in a calibrated vessel, from 0
to 2000 ml. VE HIC
LES WITHOUT FUEL
RETURN
Disconnect the supply pipe from the fuel
electric pump assembly .
Connect on the pipe a hose, one extremity
being introduced in a calibrated vessel from 0
to 2000 ml.
Start the fuel electric pump by bridging the
3 and 5 terminals of the fuel pump H relay
(placed in the fuse and relays box from engine
compartment).
The pump output must be minimum 1.3 l /
min at 12 V.
If the output is not correct, check the pump
s upply voltage (capacity i s decreasing by
approximate 10% for a voltage drop of 1 V).
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MOTEUR E7J-26213
FUEL SUPPLY
13 - 4
Supply pressure
MOT. 13 11 -0 6
MOT 1311 -04
MOT 1311 -01
SUPPLY PRESSURE CHECKING
SPECIAL TOOLS
MOT 13 11 – 01 Petrol pre ssure
checki ng ki t
MOT 13 11 – 04 J - connection
MOT 13 11 – 06 Device for
conn ection s
dismounting.
AT T E N T I O N !
When opening the fuel circuit, protect
by means of a gauze piece against petrol
s plashing due to residual pressure from
the supply circuit.
Dismount the air filter.
Disconnect the fuel supply hose.
Connect the MOT 1311-04 device on the
ramp, and then reconnect the fuel supply
piping to the connection.
Mount the manometer 0 ÷ 10 bar and
the flexible hose MOT 1311 – 01.Bridge the terminals
3 and 5 of the fuel pump
relay H, placed in the fuse and relays box.
The measured pressure must be 3.5 bars.
Fo r vehicles with fuel circuit without return
(controller mounted on pump), the pressure is
constant.
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IGNITION AND INJECTION
17
17 - 7
Injection system
In the fuse box located in the engine compartment, the following relays may be identified:
A. Co mpressor relay
B. Engine c ooling fan relay, step I
C. Engine cooling fan relay, step II
D. UCE injection relay, canister-purging valve
E. Fog projectors relay
H. Fuel pump and ignition coil relay
14. C arbon canister with purging valve
included
;
16.
Power steering pressure controller; 12.
Oxygen sensor;
15.
A ir conditioning pressure controller.
1
15
12
1614
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IGNITION AND INJECTION
17
17 - 10
MU LTI-POINT INJE CT ION CHARACT E RISTICS
〈 SIRIUS 32 with 90 pins computer is managing the ignition and the injection.
〈 For diagnostic, CLIP Sagem tester is to be used.
〈 The injection system in use is a sequential multi-point type, injection and ignition phases
controlling being based on the SIRIUS 32 computer program logic, starting from the signal received
from the RPM sensor.
〈The pr esence of the anti-pollution indicator OBD on the instrument panel, that is lighted for
3 seconds when setting the contact on, is specific to the vehicles observing pollution norms EURO
2000. The injection computer of these vehicles is provided with diagnostic system type OBD (“ On
Board Diagnostic).
〈 Idling regime correction is subject to:
-c limate maintenance on/off control (air conditioning)
-e lectrical balance on vehicle, as a result of connecting different electric consumers.
〈 EURO 2000 specific vehicles are provided with two oxygen sensors located in front of the
cata lyst (upstream oxygen sensor) and after catalyst (downstream oxygen sensor).
〈 At EURO 2000 specific vehicles, the fuel supply is performed at constant pressure (3.5 ±
0.2 bar), the pressure controller placed in the fuel tank being provided for this purpose.
Chara cteristics
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IGNITION AND INJECTION
17
17 - 16
PRINCI PLE
When the engine is in “closed loop” phase, the enriching adjustment is correcting the injection
time in order to be able to obtain a fuel mixture with the enriching as close as possible to 1. The
co rrec tion value is fluctuating around the value 128, within the limits 0 and 255.
Although, variations in time of the components elements parameter of the injection system may
occur, this leading to the enriching correction displacement towards 0 or 255, in order to maintain
the enrichment at the value 1. The adaptive correction is allowing the “resetting” of the injection chart in order to bring the
enrichment adju stment to the average value 128 and the achievement of an effective constant
correc tion for the enrichment or impoverishment of the fuel mixture.
The adap tive correction of the enrichment adjustment is divided into two components:
-p reponderant adaptive correction at engine medium or high charges (adaptive enriching
during running); -prepo nderant adaptive correction at engine idling or small charges (adaptive enriching
during idling).
The adap tive corrections are considering the value 128 as an average value after performing
the activation (after erasing the memorized failures) and they have for the next parameters, the
following limit va lues:
PR030 = Adaptive enriching during running 80< X < 176
PR031 = Adaptive correction during idling 80 < X < 176.
The ad apti ve corrections are not applied unless the engine is warm (water temperature > 80°C),
and it is in the “closed loop” phase and the pressure from the inlet manifold is in a certain interval.
It is necessary that engine has been run in “closed loop” phase in many of the inlet manifold
pre ssure areas, for which the adaptive correction evolution is starting the compensation of the
engine running enriching dispersions.
Therefor e, further to UCE injection re-activation, after erasing the memorized failures, when
the values PR030 and PR031 are 128, it will be necessary that a specific road test is to be per-
formed.
Enriching adaptive correction
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IGNITION AND INJECTION
17
17 - 21
This diagnostic may detect:
-spark plug fouling or smoking,
-fou ling or modification from the normal value of the injectors flow,
-f uel supply system abnormalities (pressure controller, fuel pump,..)
-pr oblems with the electric connections for controlling fuel supply circuits and the injection.
Th e di ag nostic is performed by variations measurement of the engine prompt rotation speed.
Notice of a couple decrease is allowing the defective combustion recognition as failure cause.
Th is diagnostic is done almost permanently during driving. Non accomplishment of the diagnos-
tic or recognition of the existence of failure, is leading to other OBD diagnostics inhibition. This diagnostic is enabling the identification of two types of failures:
-de structive combustion misfires, which are causing the catalyst damage. These are gener-
ating the immediate blinking of the OBD indicator. -Polluting combustion misfires, leading to e xceeding a pre-established OBD pollution limit.
These ar e generating the permanent lighting of the OBD indicator, if the cause detection is
taken place during three consecutive running.
DE T ECT ION CONDITIONS
At the beginning, it must be checked if the “learning” stages of the adaptive values by the UCE
injection have been correctly performed. Also the preliminary conditions imposed when setting the
co ntact on and those from checking moment, must be accomplished.
Check by means of the CLIP tester if the bellow mentioned states are in the following configu-
ration:
ET0 14 Cylinder 1 recognition----------------------------------------------------------------- DONE
ET2 02 OBD diagnostic of combustion misfires taken into consideration--------------AC TIVE
Detection is accomplished after the water temperature is exceeding 75°C, at three rotation
steps, between idling and 4500 rot/min. It is also possible, test performing by maintaining the engine
at idling for a period of time of 11 minutes.
ATTENTION: after performing this test, the contact set ting on is imposed (key in M
position) before reading the r esults by means of the CLI P t ester. Any contact set ting off
be fore reading the test results, will lead to their wrong interpretation.
If after test performing, the CLIP tester is noticing the presence of the combustion mis-
f ires, refer to the diagnostic method related to this symptom.
CONFIRM ATION OF THE RE PARATION PE RFORM ING
-Check by m eans of the CLIP tester, the bellow states, which must have the following
c onfiguration:
ET0 14 Cylinder 1 recognition -------------------------------------------------------------------- DONE
ET2 02 OBD diagnostic of combustion misfires taken into consideration ----------------- AC TIVE
-N o failures is detected by the CLIP tester, and the OBD indicator must be off.
Diagnostic of combustion misfires detection
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