2004 DACIA SOLENZA ignition

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
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ET037ENRICHING ADJUSTMENT
RECOMMEND AT IONS No failure must be prese nt or memorized.
C heck the connection and condition of the upstream oxygen sensor connector
M end if necessary
C heck the ignition
C heck the tightening of the canister purging valve (a leak is appreciably disturbing the mixture
enriching achievement).
C heck the tightening of the exhaust line.
C heck the tightening of the intake manifold.
If the vehic le is drive n only in town, the se nsor may be clogged (try in charge driving).
C heck the petrol pressure.
If idling is unstable, check the valve s cle arance and the distribution.
If necessary, replace the oxygen sensor.
C heck the prese nce of +12 volts supply on upstream oxygen sensor.
C heck the insu lation and cont inuity of the connections between:
Pin 45 injection computer > Pi n C upstream oxygen sensor
Pin 80 injection computer > Pin D upstream oxygen sensor
M end if necessary.
Diagnostic – States interpretation
AF TER Restart the conformity checking from the beginning.
REPARATION
vnx.su

IGNITION AND INJECTION
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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
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ET070CLIMATE CONTROL COMPRESSOR
RECOMMEND AT IONS No failure must be prese nt or memorized.
C heck the insulation and continuity on the line starting from pin 10 of the injection computer.
M end if necessary.
If the incide nt is persisting, consult the climate control dia gnostic
Diagnostic – States interpretation
AF TER Restart the conformity checking from the beginning.
REPARATION
vnx.su

IGNITION AND INJECTION
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PR001 MANIFOLD PRESSURE
RECOMMEND AT IONS No failure must be prese nt or memorized.
Incoherent manifold Check the insu lation, continuity and the absence of the parasite
pressure, contact on resistance of the connections between:
Pin 15 injection computer > p in A pressure transducer
Manifold pressure < Pin 16 injection computer > pin B pressure transducer
mini mal pressure at Pin 78 injection computer > p in C pressure transducer
idling Mend if necessary.
Incohe rent
atmospheric If all checked elements are correct, replace the transduc er. pre ssure
(PR0 16 )
M anifold pressure > Check :
m aximal pressure - Sealing between manifold and transduc er.
at idling - Valves clearance. -Canister purging valve operation
-Cyli nders compression
-La ck of leaking at inlet manifold (“false air”)
- Exhaust is not clogged.
If all these elements are correct, replace the tr ansducer.
Diagnostic – Parameters interpretation
AF TER Restart the conformity checking from the beginning.
REPARATION
vnx.su

IGNITION AND INJECTION
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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
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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
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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