ECO mode DACIA SUPERNOVA 2004 Repair Manual

ENGINE E7J-A-2/6010
10 - 33
ENGINE AND LOWER ENGINE UNITS
On the back of the be lt there i s an arrow
indicating the direction of rotation, and two
tuning marks; -the L line-up marks on the crank-
shaf t pi nion are aligned with the fixed mark M;
(the mark on the
pinion of t he cam-shaft in
down)
CAU T ION!
The pinion of the cam-shaft
ca n have five line-up marks: it is only
th e rectangular-shaped mark on the
face of a cog that represents the Up-
per Ce ntre Point, all the others serv-
ing to adju st the rocker arms.
-the marks on the belt are aligned
w ith those on the pi nions, observing t he
direction of mounting and be ginning from
the pinion of the crankshaft;
-the captor of the MOT 1505 appa-
ratus is placed (held in the position indi-
cated in the schema) at 5-10 mm to t he
belt. Any of the two captors can be used on
condition the t wo of them should not be
placed simultaneously in front of the belt.
The distribution belt is set in vibration (the
m easurement is validated by a beep of the apparatus).
-the belt is stretched by opera ting t he
str etching runner/pulley, until a value within
210 and 275 Hz is obtained;
-the stretching device is blocked, and its
screw-nut is tightened at 3 daNm;
-the crankshaft is wound 5 1/2 rotations
(no. 2 cylinder in the position of rocker-arm
adjustment); -the screw-nut of t he runner/ pulley is
stretched until a value between 145 and 185
Hz is obtained.
CAU T ION!
If the value of 275 Hz is ex-
ceeded, the belt can no longer be used,
and it ha s to be changed.
-the 0 screw-nut of the runner/pulley is tight-
ened at 5 daNm.
If not, this may get dismounted, ri sking the
engine damaging.
G
ENERAL DIREC TIONS
The stretching of the belt should only be done
for th e co ld engine mode (i.e. ambient temperature);
-a belt which has been taken off must not be re-
mounted - it will have to be replaced by a new one.
DISTRIBUTION
RECO VERY ENGINE
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ENGINE E7J-A-2/6010
10 - 34
ENGINE AND LOWER ENGINE UNITS
It is done only for the cold engine mode.
The adjustment values are:-intake 0.10 mm
-exhaust 0.25 mm
1. Cam-Shaft pinion without line-up marks
a) The method called “in balance”
Th e cylinder valves in balance (end of
exhaust; start of intake)
1
3
4
2
The cylinder rocker-arms are adjusted
4
2
1
3
b) The method called “exhaust valve opened to the maximum”
The engine is wound (c lockwise, as seen from the distribution) t ill t he e xhaust va lve
of cylinder no. 1 reaches maximum opening, and t he play is adjusted for the intake
valve of c ylinder no. 3, and also for the exhaust valve of cylinder no. 4.
The same is done for the other cylinders, as in the chart :
Exh aust valve open to the
maximum
1
3
4
2
Intake valve to be adjusted
3
4
2
1
Exhaust valve to be adjusted
4
2
1
3
ADJUSTMENT OF ROCKER-ARMS
RECO VERY ENGINE
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ENGINE E7J-A-2/6012
FUEL MIXTURE
CH ARACTERISTICS
ENGINE
Car Gearbox Ty p e Index Cylinder Stroke Cylinder
bore length volume
(mm) (mm) (cm3)
SupeRNova JH3-050 E7J A-2/60 75,8 77 1390 9,5/1
Check-ups in idle mood*
Motor Emisii poluan
i
Fuel
Type Index Mode CO(%) CO2(%) HC Lambda (minimum
(rot/min) (1) ppm l octanic number)
E7 J A-2/60 750+/50 0,5 14,5 100 0,97.. .. Unleaded petrol
max min max ....1,03 (CO95)
(1) at 2500 rot /min the CO value must be max. 0.30%;
* For water t emperature over 80
oC and after stabilizing at 2500 rot/mi n for 30
seconds; then turn ba ck into idle mode and the level of fumes is measured. The water-tempera ture a nd air-t emperature sensors are type NTC (negative
temperature coefficient), and the vari ation of their re sistance as to temperature
has the following evolution:
T (0C ) 0 20 40 80 90
A ir-T sensor
11970 - 7470 4045 - 3060 1600 - 1315 - -
R (Ohm)
Engine T 8000 - 67 00 3000 - 2600 1300 - 1100 300 - 270 215 -200
sensor
R (Ohm)
12 - 1
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 8
THE ANTI-START FUNCTION
R
EPLACING UCE INJE CT IO N CAL CUL ATOR
The UCE injection
calculator is delivered without a code, but it is able to memorize a code.
When mounting a new c alculator, it will have to memorize the code anti-start fuction
singularity of this car, then one has to check if the a nti-start function is operational. In
order to do that, the following operations must be done: -the contact is set for a fe w seconds, then it is taken out;
-after t aking out the key, the anti-start function is actived.
I
NSPE CT ING THE ANT I - ST ART FUNCT IO N
Take the key out of the contact and after 10 seconds the anti-start light indicator on the
board must begin to flash on and off. When setting the contact on, the anti-start ing indicator must turn off.
THE INFLUENCE OF THE AIR-CONDITIONINGON THE INJECTION SYSTEM
The air-conditioning installation ( AC) uses a variable cylinder-volume compressor.
There are the following connections between the air-co nditioning and the petrol injection system:
-pin no. 46 of t he injection calculator re ceives the i nformation “ solicit accelera ted
idle mode” when the button for t he air-conditioning i nstallation is pre ssed and the pres-
su re of the freon in the installation is above a limit.
-the i nformation “ absorbed power” does not infl uence the idle m ode re gime, but lets
the calculator know about the value of the couple taken by the compressor, and the calcu-
lator will opera te the step-by-step engine, through pins nos. 12, 41, 42 and 72, in order to
compensate for the couple fall. With the tester it can read in t he m enu : « Parameters l ist «
the power absorbed by the compre ssor, wich will be between 300 and 5000 W. The value
that is re ad will be of m inimum 300 W, irre spective of the coupled / uncoupled state of the
compressor.
-pin no. 10 of the injection calculator will command the E relay located in the fuse-
box of the engine compartment, which will couple the compressor.
The injection calculator c an prohibit the coupling of the AC compre ssor:
-it does not allow the coupling of the compresso r before 10 seconds after the starting of the engine;
-accordi ng to the couple re quired from t he e ngine by the driver - a nd in cert ain
s ituations according to the power absorbed by t he c ompressor - the calculator c an forbid or
authorize the starting of the compressor;
-if the water temperature is higher than, or equal to 11 5
oC, the therm ic prot ection is oper-
ated, which will not authori ze the start ing of the compre ssor; -the overload protection doe s not permit t he coupling of t he compressor when the
revolution ratio of the engine is over 5900 rot/min.
PLACING OF ELEMENTS
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 41
DIAG
NOSING-INTERPRETING THE DEFECTS
DEFECT
PRESENT
AIR-CONDITIONING COMPRESSOR RELAY COMMAND CIRCUIT
1. Open circuit or short-circuit to mass of the way to pin 10 of the
calculator
2. Short-circuit at 12 V along the way to pin 10 of the calculator25.
Check the connection and the condition of the 584 compressor relay.
Change the connector if necessary.
Check the presence of +12 V at pole 3 of the 584 compressor relay.
Check fuse S6 in the engine compartment.
Remedy it if necessary.
Check the presence of mass at pole 2 of the584 compressor relay
Remedy if necessary.
Check that the insulation and the continuity of the circuit:
pin 10 calculator
♦ pole 2 of the 584 compressor relay.
Remedy if necessary.
Check the coil of the 584 relay.
Change relay if necessary.
The prob lem is not yet solved! Consequently, the injection calculator must be changed.
CAUTION! The destruction of the calculator has probably been caused by an electric shock.
The cause of the destruction must be found before mounting a new
calcul ator.
Erase defects memorized by the computer.
Perform the steps under “Suggestions” to confirm the repair.
Remedy other possible defects.
AFTER REPA IR
Condition of breakdown detection by the calculator:
-take the contact, and wait for the dialogue with the tester to be lost,
then set the contact and resume dialogue.
Condition of performing the diagnosing:
-defec t is present
-the defect has been memorized but is recorded in the “present” state.
Note: The calculator will command the compressor relay only if the con-
d itions are met which allow the good operational mode of the air-condi-
tioning installation (pressure of refrigerating agent in installation, work-
ing electric circuit between calculator and A.C. start switch).
Refer to directions of A.C installation repairing.
S UGGESTIONS
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 51
DIAGNOSING-CON
FORMITY TEST
SUGGESTIONS B - Wi
th the hot engine, in idle mode, wit hout consumers
Battery voltage
LIST OF STÃTES
State: +After Contact to calc u-
lator
Parameter: Supply voltage of
calc ulator
If the parameter: Supply volt-
age of calc ulator
Th en the parameter: Engine
rotation ratio Confirmed state

13V X<12.7
750 rot/min If further prob-
l
ems arise, refer
to the diagnosing
of that param-
eter
Petrol pump com-
m and
State: Co mmand of actuators’
relay
Confi rmed state
Confi rmed state
Stat e: Petrol pump relay com-
m and
Co mmand of ac-
tuat ors
If furthe r prob-
l ems arise, refer
to the diagnos-
ing of the rota-
tion signal infor-
mation defectConfi rmed stateStat e: Ro tation signal
Ro tation signal
If further
proble ms arise,
refer to the
“Diagnosing Conditions”
Confi rmed stateSt ate: Recognition of the 1
cylinder
Recognition of the
1 cylinder
1.
2.
3.
4.
5. Heating of oxygen
probe Stat
e: Heating of oxygen
probe
Confi rmed state
Cl apper potenti-
ometer Stat
e: Pos ition of clapper of
acceleration pedal: free (raise d)Confi rmed stateIf further
problems arise,
refer to the
di agnosing of
that parameter
Stat e: Idle mode adjustment
Parameter: engine rotation
Parameter: To lerance of idle
m ode regimen
Parameter: Idle mode RCO
Parameter: Idle mode RCO
adapta tion.Confi rmed state
725 < X < 7 75 rot/min
-25 < X < +25 ro t/min
5 % < X < 12 %
-3 % < X < 7 % If furthe
r prob-
l ems arise, refer
to the diagnos-
ing of that state
Idle mode adjust-
m
ent
6.
7.
8.
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 54
DIAGNOSING-CON
FORMITY TEST
5.Po l luting fumes At 25 00 rot/min aft er keeping fo r
30 seco nds
In idle mode, aft er settling ro tat ion
ratioCO < 0,3 %
CO
2 > 13,5 %
O
2 < 0, 8 %
HC < 100 ppm 0,97< l <1,03CO < 0,5 %
HC < 100 ppm 0,97< l <1,03
Aft er memo rizat ion
Para meter: en rich ment adap ta-
tion un der lo ad
Para meter: en rich ment adap ta-
tion in id le mode80 < X < 176
80 < X < 176
If further
problem s ari se,
refer to the
di a gnosing of
those param-
eters
Enri chmen t
ad ap tat ion4.
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E7J-A-2/60 ENGINE17
IGNITION AND INJECTION
17 - 67
DIAG
NOSING-BREAKDOWN LOCALIZATION ALGORITHM
IDLE MODE PROBLEMS
Do not use this information before having done the complete check-
up w ith the tester!2.
SUGGESTIONS
Check if there is petrol in the fuel tank (do not rely on the
on-board indi ces). Check if it is the fuel recommended by
the manufa cturer.
Check the fuel

Check if there are no broken tubes.
Check the tubes and hose
s.
♦
♦
Check the state of the sparking plugs and the ignition coil.
Check, on the o il ga uge , if the le ve l of the oil is not too h igh.
Connect the tester “CLIP” and do the test corresponding
to the check-up of the rotation signal.
Gently touch the step-by-step engine in order to possibly
unblock it.
Check the condition of the fittings.
Check, after taking them apart, whether the injectors leak.
Check if the clapper body is not clogged.
Check the ignition
Check the engine oil level
Ch eck the step-by-step engine
Check the intake collector
Check the injectors
Ch eck the body of the clapper
♦
♦
Check the engine flywheel♦
♦
♦
♦
♦
Check the flow and the pressure of the fuel: the condition
of the pe trol-pump, of the pressure regulator. Check the
injectors (flow, shape of jet)
Check if the exhaust circuit is not strangled-up and the
cata lyst is not stopped-up.
Check the fuel-supply
circuit
Check the exhaust system
♦
♦
A
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82A
HORN - ENGINE IMMOBILISER
82A - 4
NOTE :
The vehicles equipped with this anti starting system, have a type of decoder, and those
provided also with RF remote control for locking/ unlocking doors have another type
of decoder.
The identification of the two types of E.C.U. de coder i s realised by the inscriptions on
the labels as fol lows: -code P8200032783H and the inscription TRANS-PLAF for the vehicles without
RF remote control ;
-code P82000 32776H and the inscription TRF-TRANS-CAR for the vehicles
with RF remote control.
ANTI STARTING INDICATOR
It is located on the instrument panel (picture 8, position A) and has the following functions: - signals the activation of the anti starting system
- signals the case of non identifying the key head
- signals the entrance in the operation mode “resynchronisation” of the remote controls,
RF with E.C.U. decoder, for the vehicles which use the RF remote control.
pict.7
pict.8
A
GENERALITIES
The dome ceiling lighting is activated subject to the position of the switch
(picture 7, position 1):
- position A the ceiling lights permanently
- position B the ceiling turned off
- position C dome ceiling lighting; this will light for 5 seconds after a front door closing or
after the command of unlocking the doors with the RF remote control. This delay turns out in the
moment of setting the contact.
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82A
HORN - ENGINE IMMOBILISER
82A - 11
A.
ECU DECODER REPLACEMENT PROCEDURE AND ANTI STARTING
CODE MEMORISING
The new E.C.U. decoder is always not coded. After its mounting on the vehicle it is necessary
that this one is memorising the anti starting code in order to be operational.
NOTE
If only the E.C.U. decoder i s replaced, there i s no need of an i ntervention to t he
E.C.U. injection (injection computer), which will keep the old anti starting code.
AT TENT ION
After the E.C.U. de coder memorised the anti starting c ode, this code cannot be erased
or replaced with another one.
In order t o perform this procedure, one of the keys of t he ve hicle and the CLIP tester are
needed. Perform as follows: 1. Connect the CLIP tester to the diagnostic socket and to the battery (or the lighter
socket) of the vehicle. 2. Read the configuration of the old E.C.U. decoder in the following way, before dismounting
it from the vehicle:
- select t he type “SUPERNOVA” and the “050” equipping level;
- enter the menu “ COMPUTER TEST” then choose “ ANTI STARTING”
- access “COMMAND MODE” then “CONFIGURATIONS READING”
- note the configurations found : petrol/d iesel, programming with 1 or 2 keys, ceiling delay,
the type of the doors’ blocking switch (CPE), etc.;
3. Get back to the m enu “TEST COMPUTERS”
4. Remove the old E .C.U. decoder and replace it with a new one, the contact being off.
5. Enter the menu “ANTI STARTING”, then select “ STATE LIST”. If the E.C.U. decoder
is new, you must find the following states:
18G FIRST CYCLE MEMORISING………………........................ ACTIVE
19G NOT PERFORMED KEY PROGRAMMING……………….. ACTIVE
19D UNLOCKED KEY PROGRAMMING………………............. ACTIVE
OBSERVAT ION
If the states 19G and 19D are not “ACTIVE” this means the E.C.U. decoder has
been already used, so it isn’t new and cannot memorise another anti starting code.
Access the menu “COMMAND MODE” and then “CONFIGURA TION”, where you will
configure the new E.C.U. decoder in the same way as the old one: petrol, 1 key, ceiling delay,
impulsion doors blocking switch, etc. selecting one by one these configurations, which you’ll
validate with “CLICK” on the blue button on right top of the screen. PROCEDURES
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