2004 DACIA SOLENZA sensor

IGNITION AND INJECTION
17
17 - 73
ET039IDLING ADJUSTMENT
RECOMMEND AT IONS No failure must be prese nt or memorized.
Attention to the recommended value of idling RPM: PR041
C heck the connection and condition of the idling regulator connector.
R eplace the connector if necessary.
C heck the resistance of the idling regulator.
R eplace the idling regulator if necessary
C heck the in su la t ion and continuity of the connections between:
Pin 12 inj ection computer >pin B idling regulator
Pin 41 inj ection computer >pin A idling regulator
Pin 42 inj ection computer >pin C idling regulator
Pin 72 inj ection computer >pin D idling regulator
M end if necessary.
Idling regime
< minimal limit RECOMMENDAT IONS The idling RPM is too low
- Check the enriching adjustment operation.
- Clean the air supply circuit (valve body, idling regulator), which may be clogged.
- Check the engine oil level ( too high ? bubbling).
- Check the engine compressions.
- Check the valves clearances and the distribution setting.
- Check the ignition.
- Check the injectors.
If all checked eleme nts are correct, replace the idling regula tor
Idling regime
> maximal limit RECOMMEND AT IONS The idling RPM is too high
- Check the oil level
- Check the good operations of the atmospheric pressure sensor.
- Check possible leaks at piping connected to the inlet manifold.
- Check the electric valve s with pneumatic control.
- Check the manifold gaskets.
- Check the gaskets of the valve body.
- Check tightening at servo-brake.
- Check the presence of nozzles in the connection hose s of the oil vapors re-aspiration circuit.
- Check the valves clearance and the distribution setting.
If all checked eleme nts are correct, replace the idling regula tor AFTER Restart the conformity checking from the beginning.
REPARATION
Diagnostic – States interpretation
vnx.su

IGNITION AND INJECTION
17
17 - 76
PR002WATER TEMPERATURE
RECOMMEND AT IONS No failure must be prese nt or memorized.
If the value red is incoherent, check that sensor is correctly following the standard curve “resistance
s ubject to temperature”.
R eplace the sensor if this is prese nting deviations (Observation: the presence of the deviations from
normal values of a sensor are ofte n due furthe r to an electric shoc k).
C heck the insulation, continuity and the abse nce of the parasite resistance of the con nections
between:
Pin 13 injection computer > pin B2 water temp erature sensor
Pin 73 injection computer > pin B1 water temperature se nsor
Me nd if necessary.
Diagnostic – Parameters interpretation
AFTER Restart the conformity checking from the beginning.
REPARATION
vnx.su

IGNITION AND INJECTION
17
17 - 77
ET003AIR TEMPERATURE
RECOMMEND AT IONS No failure must be prese nt or memorized.
If the value red is incoherent, check that se nsor is correctly following the sta ndard curve
“resistance subject to temperature”.
R eplace the sensor if this is presenting deviations (Observation: the prese nce of the deviations
from normal values of a sensor are ofte n due further to an ele ctric shock).
Ch eck the insulation, continuity and the absence of the parasite resistance of the connections
between:
Pin 49 injection computer > pin 1 air tem perature sensor
Pin 77 injection computer > pin 2 air temperature se nsor.
M end if necessary.
Diagnostic – Parameters interpretation
AF TER Restart the conformity checking from the beginning.
REPARATION
vnx.su

IGNITION AND INJECTION
17
17 - 78
PR004COMPUTER SUPPLYING VOLTAGE
RECOMMENDATIONS No failure must be prese nt or memorized.
No consumers
If vo ltage > Min, the batte ry is discharged :
C heck tha t charging voltage is correct with and without consumers.
Under contact If voltage > Max, the battery i s, probabl y, too charged:
C heck tha t charging voltage is correct with and without consumers.
If voltage < Min, the charging voltage is to weak :
C heck that charging circuit in order to dete ct the origin of this problem.
At idling If voltage > Max, t he charging voltage is too strong:
The alternator -charging regulator is damaged.
Fix this problem and check the ele ctrolyte level in the battery.
If the battery
and the charging The problem must be treated using the DF345 diagnostic method : Supply +5
circuit are volts potentiometers and sensors
correct.
AF TER Restart the conformity checking from the beginning.
REPARATION
Diagnostic – Parameters interpretation
vnx.su

IGNITION AND INJECTION
17
17 - 81
AC010FUEL PUMP RELAY
RECOMMEND AT IONS No failure must be prese nt or memorized.
Before perform this checking, check the lines corresponde nce on the
electric diagram adequate to that vehic le.
Ch eck that choke sensor is in operating condition
M end the choke sensor if necessa ry.
Ch eck the continuity between ways 1 and 3 of the choke sensor.
If there is no continuity, repla ce the choke sensor.
Ch eck, under starter operation, the prese nce of the +12 volts at way 3 of t he choke sensor connector.
If there is no +12 volts, restore in function the line from way 3 of the choke sensor to pole 5 of the fuel
pump relay.
Ch eck the wiring condition and the mass presence at the fuel pump.
Ch eck the wiring insu lation and cont inuity :
Way 3 choke sensor > fuel pump
M end if necessary.
If the incident is persisting, repla ce the fuel pump.
Diagnostic – Parameters interpretation
AF TER Restart the conformity checking from the beginning.
REPARATION
vnx.su

IGNITION AND INJECTION
17
17 - 85
ALP 2 STARTING PROBLEMS engine is not starting or is difficulty starting)
RECOMMEND AT IONS Do not consult this diagnostic but before performing a complete
checking by means of the CLI P tester.
Ch eck that starter is well operating
Ch eck there is petrol in the fuel tank (fuel indicator failure).
Ensure that vehic le is supplied with adequate fuel.
Ch eck tha t supply cir cuit hoses are not broken (espe cially further to a dismounting)
Ch eck the condition of the fuel filter
Ch eck the condition of the fuel tank
Ch eck that fuel tank aeration is taking place.
Ch eck the electric supply of the fuel pump.
Ch eck the good operation of the choke sensor.
Ch eck the motor of the idling regula tor.
In order to unblock it, you may slightly hit it.
Disconnect the connection hose between the canister purging valve and the intake manifold.
Cl amp the connection hose in order to stop the air passing.
If there are no more disturbances, the cause is the canister purging valve.
Ch eck the spark plugs and ignition coil condition
Ch eck tha t these eleme nts are specific to that vehicle.
Ch eck that the exhaust route is not clogged and the catalyst is not clogged.
Ch eck the engine compressions
Ch eck the flywheel condition
Ch eck the distribution setting on.
AFTER Perform a checking by means of the CLI P tester.
REPARATION
Fa ilure locating algorithm
vnx.su

19
19 - 7
COOLING - EXHAUST - TANK
Cooling engine fan for vehicles without air conditioning
DISMOUNTIN G
Disconnect the battery (-) terminal.
Remove the air inlet pipe from the attachment of the battery screen.
Detach from clips the oil reservoir of the power steering from the battery screen.
Disconnect the engine fan connector ( 1) and detach from clips wiring of point ( 2)
Dismount the four attachment screws ( 3) of the engine fan on radiator.
Carefully dismount the engine fan assembly from guiding points (4).
REMOUNTING
Check the condition of the fan impeller and of the engine fan electric motor.
Carefully position the engine fan assembly in the guiding points (4).
Mount the attachment screws ( 3) of the assembly on the radiator.
Connect the engine fan connector ( 1).
Attach in clips the wiring in point ( 2).
Attach in clips the power steering oil reservoir on the battery screen.
Mount the air inlet pipe.
Connect t he battery (-) terminal. In case the vehicle is equipped with programmable
r adio-cassettes player, e lectronic clock, etc, there are t o be re-programmed before returning
the vehicle to the client.
Check the engine fan operation: start the vehicle engine and disconnect the water
temperature sensor. The engine fan must start. Reconnect the water temperature sensor
then by means of the CLIP tester erase the memorized failure corresponding to the water
temperature sensor.
vnx.su

19
19 - 8
COOLING - EXHAUST - TANK
COOLING ENGINE FAN NOT WORKING
(for vehicles without air conditioning)
Replace fuse
F01
.
Check fuse F01 from engine compartment. Is it good?
Replace water temperature sensor.
Replace the control relay of the cooling engine fan.
Replace the cooling engine fan assembly . Start the vehicle’s
engine.
Disconnect the water
temperature sensor. Is the
cooling engine fan working?
Check the control relay of the cooling engine fan Is it good?
Is any voltage between pins 1
and 2 of the cooling engine fan connector?
The wirin g
is
damaged. Fix it. Stop the vehicle engine.
Check the continuity and resistance
against vehicle mass between:
- pin B2 connector of water temperature sensor pin 13 UCE i njection;
- pin B1 connector of water temperature sensor pin 73 UCE i njection;
- pin 3 connector of cooling engine fan control relay exit fuse F01;
- pin 5 connector of cooling engine fan control relay pin 2 connector of
cooling engine fan
- pin 1 connector of cooling engine fan vehicle mass;
- pin 1 connector of cooling engine fan control relay pin D 5 connector
of actuators relay;
- pin 2 connector of cooling engine fan control relay pin 8 UCE injection.
Ar e they good?
Replace UCE injection.
AT T E N T I O N !
The injection computer damaging i s probably due to an e lectric
shock. Before mounting a new injection computer, the cause of its
damaging must be found.No Ye s
Yes
No No
Ye s Ye s
No
Ye s
Diagnostic – failures interpretation
at vehicles without air conditioning
vnx.su