DACIA SOLENZA 2004 Repair Manual

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 - 79
Diagnostic – Parameters interpretation
PR017VALVE POSITION
RECOMMEND AT IONS No failure must be prese nt or memorized.
Limit memorizing of Check that potentiometer me chanical limitter has not been
PR008 or non-dete ction Check the acceleration control (fric tion, pedal ET005 obstacle,…).
of the released
acceleration pedal
ET003 or non-detecting Check the valve potentiometer resistance.
of pressed Replace the valve potentiometer, if neces sary.
acceleration modified. Check the insulation, continuity and the absence of the p arasite
resistance of the connection between:
Pin 43 injection computer > pin C valve potentiometer
Pin 74 injection computer > pin B valve potentiometer
Pin 75 injection computer > pin A valve pote ntiometer
The valv e pos ition Check that potentiometer is mec hanic ally coupled to the valve.
is fixed (PR017) If necessary, replace the transducer.
AFTER Restart the conformity checking from the beginning.
REPARATION
vnx.su

IGNITION AND INJECTION
17
17 - 80
PR030 ENRICHING ADAPTATION IN OPERATION
PR031 ENRICHING ADAPTATION AT IDLING
RECOMMEND AT IONS No failure must be present or memorized.
Perform the steps for memorizing the adaptation values by the injection
computer.
Erase the computer memory. A t warm, when idling adjustment, observe the se paramete rs :
- If one of t hese parameters is moving towards the minimal limit, there is not sufficient petrol or there
is t oo much air.
- If one of the se paramete rs is moving towards the minimal limit, there is too much petrol or there is
not sufficient air.
(See chapter “ Enriching adaptive correction) for the exact limit values)
Ensure the cleaning condition and the good operation of :
- fuel filter
- fuel pump
- fuel circuit
- fuel tank
- air supply piping
- air filter
- spark plugs
C heck :
- Engine compressions
- Valves cle arance
- Ignition
Diagnostic – Parameters interpretation
AF TER Restart the conformity checking from the beginning.
REPARATION
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 - 82
AC212WATER TEMPERATURE WARNING INDICATOR
RECOMMEND AT IONS No failure must be prese nt or memorized.
C heck the mass presence on the indicator line, after control activating.
M end if necessary
If a short- circuit has occurred at the supply circuit +12 volts on the indicator line, the instrument
panel may be dama ged.
If the incident is persisting, consult the instrument panel diagnostic
Diagnostic – Parameters interpretation
AF TER Restart the conformity checking from the beginning.
REPARATION
vnx.su

IGNITION AND INJECTION
17
17 - 83
RECOMMEND AT IONS Do not use these inf ormation but before performing the complete
checking by means of the CLIP tester
IMPOSSIBI LITY OF COMMUNICA TION UCE INJECTION - CLIP TESTER ALP 1
STARTING PROBLEMS
(engine is not starting or is difficulty starting) ALP 2
I DLING PROBLEMS (unstable idling) ALP 3
INTEMPERATE AC CELERATION OR DECELERATION
(engine unstable running) ALP 4
ENGINE OPERATION BREAKDOW NA LP 5
ENGINE STOPPING ALP 6
ENGINE NO I S E ALP 7
SMOKE ALP 8
PERFORMANCES LIST ALP 9
F UEL CONSUMP TION ALP 10
Failure locating algorithm
vnx.su

IGNITION AND INJECTION
17
17 - 84
ALP 1 IMPOSSI BILITY OF COMMUNICA TION UCE INJECTION CLIP TESTER
RECOMMEND AT IONS Nothing to be noticed
Ens ure t hat not the CLIP t ester is the cause of the f ailure, by trying to c ommunicate with the
computer of anothe r vehicle.
C heck connection between CLIP te ster and the vehicle diagnostic soc ket (cable condition).
C heck the condition of the injection fuse s, engine and cockpit.
M end if necessary.
C heck the presence of the supply +12 V at pin 16 and of the mass at pins 4 and 5 of the dia gnostic
device socket.
M end if necessary.
C onnect the 90 ways terminal box instead of the computer and check the insulation, continuity
and abse nce of the parasite resistance of the connections between: pin 28 injection computer > mass
pi n 33 injection computer > mas s
pi n 3 injection computer > mass
pi n 56 injection computer > p in 7 diagnostic socket
pi n 26 injection computer > p in 15 diagnostic socket
pi n 29 injection computer > fuse
pi n 30 injection computer > fuse
M end if necessary.
Fa ilure locating algorithm
AFTER Perform a checking by means of the CLI P tester.
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

IGNITION AND INJECTION
17
17 - 86
ALP 3 IDLING PROBLEMS (unstable idling)
RECOMMEND AT IONS Do not consult this diagnostic but before performing a complete
checking by means of the CLI P tester.
C heck if there is petrol in the fuel tank (fuel indicator failure)
C heck if the vehic le is supplied with adequate fuel
C heck tha t supply cir cuit hoses are not broken (espe cially further to a dismounting)
C heck the condition of the fuel filter
C heck the condition of the fuel tank
C heck that fuel tank aeration is taking place.
C heck the connection and the condition of the idling regulator connector.
Re place the connector if necessary.
C heck the motor of the idling regulator
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.
C heck the spark plugs and ignition coil condition
C heck tha t these eleme nts are specific to that vehicle.
C heck that the exhaust route is not clogged and the catalyst is not clogged.
Check, by means of the oil dipstick, that oil level is not too high.
C heck for lack of sealing at servo-brake (noise).
C heck the intake manifold condition
C heck if the valve body is not clogged
C heck the engine compressions.
C heck the engine flywheel condition
C heck the distribution setting on.
AFTER Perform a checking by means of the CLI P tester.
REPARATION
Fa ilure locating algorithm
vnx.su