power DACIA SOLENZA 2004 Owner's Manual

ENGINE E7J - 26214
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ANTI-POLLUTION
Pet rol vapors re-aspiration
OPERATING PRINCIPLE
The communication of the t ank with t he
atmosphere is done through the carbon can. The petrol vapors are retained when they are
passing through the active carbon from the carbon
can. By means of a purging valve controlled by a
RCO signal issued by UCE injection, the petrol
vapors are re-aspired through piping by the intake
manifold.
The flow section of the purging valve is
variable, subject to the balance given by the
magnetic field created by supplying the purging
valve coil and the power of the spring ensuring
the valve closing.
RE-ASPIRATION CONDITIONS
The can-purging valve is controlled by pin
4 of the UCE injection, in the moment when:
-w ater tempera ture > 20 ° C;
- air temperature > 10 ° C;
- engine is running over a certain im-
posed charge; -valve potentiometer is not in the posi-
tion acceleration pedal not pressed.
By using the CLIP tester, it is possible the
reading of the RCO value (opening cyclic
ratio).
The purging valve is closed for a value
smaller than 0.7%. OPERATION CHECKING OF THE
CAN PURGING VALVE
A defective operation of the petrol vapors
re-aspiration system, may lead to an unstable
idling or even to the engine stopping. First of all, check:
-circuit conformity (see the operating
diagram)
-piping condition between the can and
the fuel tank (sealing, circuit clogging).
The (B) piping coming from the tank shall
be clogged.
Connect a manometer (-3…+3 bar) at the
(M) connection for communication with the
atmosphere and check at idling if there is
depression. Is there depression?
YES – Set conta ct off. Usi ng a
vacuum pump, apply a 500 - mbar depression
at the (A ) piping connection of t he purging
valve. The value of the red depression must
not have a variation more than 10 mbar
wi thin 10 seconds.
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16ENGINE E7J-262
16 - 5
ALTERNATOR – STARTER
21
Vehicles equipped with air conditioning
DISMOUNTIN G
Place the vehicle on a two-column elevator
Disconnect the battery
Dismount the alternator upper attachment screw.
Dismount the front right wheel.
Lift the vehicle.
Dismo unt :
- protection fairing;
- lateral tie-rod ( 1);
-s hock absorber two attachment screws (2) on steering knuckle.
Swing over the steering knuckle and remove the right planetary transmission from the plan-
etary gear of the gearbox. Disconnect the electric connectors of the alternator.
Dismount the alternator lower attachment screw.
Dismount the alternator’s belt.
Remove the alternator, laterally by the right planetary transmission.
REMARK:
In order to replace the alternator belt, first dismount the accessories driving belt
(compressor and/or power steering pump).
R EMOU NT I NG
Perform the dismounting operations in the reverse order.
Tighten the alternator driving belt to 263 HZ ± 10% by means of the MOT 1505 device (see
the m ethod described in c hapter 07 “ Accessories belts tightening”)
Tighten to the required moment the alternator’s attachment screws.
REMARK:
A dismounted belt is not to be remounted, but replaced.
Alternator
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IGNITION AND INJECTION
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ELEMENTS LOCATION
1. RPM sensor ( tightening moment : 0.8 daNm);
2. Water temperature sensor (tightening moment: 2.5 daNm);
3. Atmospheric pressure sensor;
4. Step-by-step engine for idling adjustment;
6. Air temperature sensor;
7. UCE injection;
8. Choke sensor;
9. Fuse and relays box;
10. Air filter;
11 .D etonation sensor (tightening moment: 2.5 daNm);
12. Oxygen sensor (tightening moment: 4.5 daNm);
13. Ignition coil;
14. Carbon canister with purging valve included;
15. Power steering pressure controller(tightening moment: 1.2 daNm);
16. Air conditioning pressure controller (tightening moment: 0.8 daNm).
Injection system
13 10 11 5 4 6 3 2 1 8 9
14 1 6 15 12 7
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IGNITION AND INJECTION
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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
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AIR CONDITIONING UNIT IS USING A COMPRESSOR
WITH VARIAB LE DI SPLACE M ENT
Th e connections injection/air conditioning, are the followings:
- pin 46 of the injection computer is receiving the information “ air conditioning
re que st” further to the air conditioning switch acting;
- pin 10 of the injection computer will transmit the coupling control of the air
co nditioning compressor by means of the “A” relay, if the coupling authorization conditions are
accomplished.
The information “power absorbed by compressor” displayed when performing diagnostic by
means of the CLIP tester, is related to the couple value taken by the compressor. This is of 300-
5000W, the minimal displayed value being of 300 W, regardless the compressor coupled / unc oupled
c ondition.
Th e injection computer is forbidding the compressor coupling in the following situations:
-at less than 16 seconds from engine starting;
-subject to the power requested to the engine by the vehicle driver.
-when th e acceleration pedal is fully pressed;
-i f the engine RPM is lowering till 550 rot/min (compressor is again coupling if the RPM is
r eachi ng to 1800 rot/min);
-if the wa ter temperature has increased to over 110° C;
-if the engi ne RPM is exceeding 6000 rot/min.
Injection / air conditioning strategy
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Diagnostic – Failures interpretation
DF 118
P RESENT
OR
ME MO RIZED
On the vehicles equipped with refrigerant fluid pressure
transducers, the injection computer is recalculating the value of the
RE COMMENDATIONSPR 044 parameter: Compressor absorbed power, starting from the
values of the refrige rant fluid pressure.
In case of the paramete r PR027 deviation from normal values, the
value of the PR044 parameter might be wrong.
C heck the connection and condition of the connector of the refrigerant fluid pressure transducer.
M end if necessary.
C onnect the 90 ways terminal box instead of the injection computer then check the insulation and
continuity on lines: Pin 82 injection computer > p in A pres sure transducer
Pin 83 injection computer > pin B pressure transducer
Pin 18 injection computer > p in C pres sure transducer
M end if necessary.
If the problem is persisting, perform a climate control diagnostic.
Pe rform the operations from ” recommendations” for reparation confir mation
AF TER Fix any other possible failures
REPARATION Erase the failures memoriz ed by the injection computer.
Perform a conformity checking by means of the CLIP tester.
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Diagnostic – Failures interpretation
DF 261 FUEL PUMP RELAY CIRCUIT
P RESENT 1. DEF Supply failure + after relay
OR 2. DEF Open circuit or short-circuit
ME MO RIZED
If failure “DF345 : Supply 5 volts potentiometers and sensor s” is
present or memori zed, it must be treated as most important .
Conditions for diagnostic appl ication at memorized failure:
Se t the contact on, then enter in dia logue with the computer
Or activation of the actua tor control “ AC 010 : Fuel pump relay”.
RECOMMEND ATIONS REMARK : This failure is most important. So it must be treated before
t he next ones.
* If the failure is memorized with OBD indicator on, check in the context
part, if state “ET241 : Fuel pump control cir cuit” corresponding to the
OBD indicator lighting request is affir mative. In this case , proceed as
per bellow mentioned method
1. DEF RECOM MENDAT IONS It is a failure on the power circuit of the fuel
pump relay.
C heck the electric continuity f the idleness contact.
Me nd if necessary.
C heck the connection and con dition of the fuel pump relay connector .
R eplace the connector if necessary.
C heck the presence of the +12 volts supply at pole 3 of the fuel pump relay
Me nd if necessary.
C heck with the contact set on a nd acting the actuator c ontrol “AC010 : Fuel pump relay”, the
prese nce of +12 V supply at pole 5 of the fuel pump relay.
R eplace the relay if necessa ry
C heck the insu lation and cont inuity of the connections between:
Pole 5 fuel pump relay > pi n C ignition coil
Pole 5 fuel pump relay > fuel pump
Me nd if necessary.
If the problem is persisting after these checking, treat the other failures then perform the
conformity checking.
Perform the operations from ” recommendations” for reparation confirma tion.
AF TER Fix any other possible failures
REPARATION Erase the failures memoriz ed by the injection computer.
Perform a conformity checking by means of the CLIP tester.
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DF 261
CONTINU AT I O N
2. DEF RECOM MENDAT IONS It is a failure on the power circuit of the fuel
pump relay.
C heck the connection and condition of the fuel pump relay connector .
R eplace the connector if necessary.
Check, with the contact set non, the pr e sence of the +12 volts supply at pole 1 of the fuel pump
relay.
M end if necessary.
C heck the fuel pump rela y coil.
R eplace the fuel pump rela y if necessary.
Check the insu lation and continuity of the line:
Pin 68 injection computer > pole 2 fuel pump relay
M end if necessary.
If the problem is persisting after these checking, treat the other failures then perform the conformity
checking.
P erform the operations from ” recommendations” for reparation confirma tion.
AF TER Fix any other possible failures
REPARATION Erase the failures memoriz ed by the injection computer.
Perform a conformity checking by means of the CLIP tester.
Diagnostic – Failures interpretation
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Diagnostic – Conformity checking
Sequence Function Parameter/Controlled s tate or action Visualization Diagnostic
and Observations
In case of a problem
10 Anti-detonationPR013 : Detonation average signal 20 < X < 1 00 consult the
circuit PR0013 diagnostic
ET037 : Enriching adjustment ACTIV E
11 Enriching In case of a problem
adjustment PR009 : Upstream O2 sensor voltage 20 < X <84 0 mV consult the
ET037 diagnostic
PR 035 : Enriching correction value 0 < X < 255 Average value 128
Cl imate contro ET009 : Climate control request ACTIV E
(controlled AC) If injection is authorizing thecompressorcoupling
ET070 : Climate control compressor ACTIV E
If injection is
authorizing the compressorcoupling
In case of a problem
consult the ET00,
ET070 and DF1 18
According to E035 : fan low speed ACTIV Ediagnostic or chapter
conditions and Fan must “Injection/CA
requests of the run at low str a tegy” injection speed
computer,
12 w a t e r temperature,
electric If state
consumption, ET038 : accelerated idling ACTIV E
refrigerant fluidThen parameter pressure PR006 : Engine regime 850 < X < 960 rpm
If type Info PA 300 complete or coldP R044 : Absorbed power by AC ( X<300W if the
l oop present in compressor injection is not
injection authorizing the
the compressor
coupling)
If type cold PR027 : Refrigerant fluid pressure
l oop in injection 2< X < 6 bar
RECOMMEND
AT IONS The values show n on this conformity checking are only as indication.
Performing conditions : Warm engine at idling and no consumers.
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Diagnostic – States interpretation
ET009CLIMATE CONTROL REQUEST
RECOMMEND AT IONS No failure must be prese nt or memorized.
The injection computer is not noticing the air conditioning starting control.
Ch eck the in sulation and continuity on the line from pin 23 (climate contr ol of type Info Power
Absorbed by compressor) or from pin 46 (climate control of type Logical connection) of the injection
computer.
M end if necessary.
If the proble m is persisting consult the climate control diagnostic.
AF TER Restart the conformity checking from the beginning.
REPARATION
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