2004 DACIA SOLENZA check engine

IGNITION AND INJECTION
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ET036HIGH SPEED - ENGINE FAN
RECOMMEND AT IONS No failure on the water temperature sensor circuit must be present in
order to perform this diagnostic
Check:
- engine fan condition
- engine fan resistance condition
- condition of the engine fan mass connection
-hi gh speed engine fan supply
-s upply line between engine fan and engine fan relay
M end if necessary.
C heck the connection and condition of the connector of the hi gh speed engine fan relay
R eplace the connector if necessary.
Rem ove the relay of the high speed engine fan
C heck, with the contact set on, the supply presence +12 volts at pole 1 of the rela y.
M end if necessary.
Measure the relay coil resistance.
R eplace the relay of the high- speed engine fan, if necessa ry.
C onnect the 90 ways terminal box instead of the computer and check t he in su la t ion, continuity and
absence of the parasite resistance on the connection between: Pin 38 injection computer > Relay of the high speed engine fan
M end if necessary.
Diagnostic – States interpretation
AF TER Restart the conformity checking from the beginning.
REPARATION
vnx.su

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 - 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 - 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

IGNITION AND INJECTION
17
17 - 87
ALP 4 INTEMP ERATE ACCELERATION OR DECELERATION
(engine unstable running)
RECOMMEND AT IONS Do not consult this diagnostic but before a complete checking by
means of the CLIP tester
Ch eck if air filter is not deformed.
Ch eck if there is petrol in the fuel tank (fuel indicator failure)
Ch eck if the 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.
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 se aling of the exhaust manifold.
Ch eck, by means of the oil dipstick, that oil level is not too high.
Ch eck for lack of sealing at servo-brake (noise).
Ch eck the intake manifold condition
Ch eck if the valve body is not clogged
Ch eck the engine compressions.
Ch eck tha t brake calipers, drums and bearings are not gripped.
Ch eck that tires are inflated
Ch eck the engine flywheel condition
Ch eck tha t cooling system is properly operating
AFTER Perform a checking by means of the CLI P tester.
REPARATION
Fa ilure locating algorithm
vnx.su