Dacia Solenza (engine E7J). Manual - part 43

IGNITION AND  INJECTION

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17 - 78

PR004

COMPUTER 

SUPPLYING VOLTAGE

 RECOMMEN

DATIONS

No failure must be present or memorized.
No consumers

If voltage > Min, the battery is discharged :
Check that charging voltage is correct with and without consumers.

Under contact

If voltage > Max, the battery i

s, probably, too charged:

Check that charging voltage is correct with and without consumers.

If voltage < Min, the  charging voltage is to weak  :
Check that charging  circuit in order to detect the origin of  this problem.

At idling

If voltage > Max, t he char

ging voltage is too strong:

The alternator-charging regulator is damaged.
Fix this problem and check the electrolyte 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.

AFTER

Restart the conformity checking from the beginning.

REPARATION

Diagnostic – Parameters interpretation

IGNITION AND  INJECTION

17

17 - 79

Diagnostic – Parameters interpretation

PR017

VALVE POSITION

RECOMMENDATIONS

No failure must be present or memorized.

Limit memorizing of

Check that potentiometer mechanical limitter has not been

PR008 or non-detection

Check the acceleration control (friction, pedal ET005 obstacle,…).

of the released

acceleration pedal

ET003 or non-detecting

Check the valve potentiometer resistance.

of pressed

Replace the valve potentiometer, if necessary.

acceleration modified.

Check the insulation, continuity and the absence of the parasite
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 potentiometer

  The valve position

Check that potentiometer is mechanically coupled to the valve.

is fixed (PR017)

If necessary, replace the transducer.

AFTER

Restart the conformity checking from the beginning.

REPARATION

IGNITION AND  INJECTION

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17 - 80

PR030

ENRICHING 

ADAPTATION IN OPERATION

PR031

ENRICHING 

ADAPTATION AT IDLING

RECOMMENDATIONS  No failure must be present or memorized.

 Perform the steps for memorizing the adaptation values by the injection

computer.

Erase the computer memory. At warm, when idling adjustment, observe these parameters :

- If one of these parameters is moving towards the minimal limit, there is not sufficient petrol or there
is too much air.
- If one of these parameters 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

Check :
- Engine compressions
- Valves clearance
- Ignition

Diagnostic – Parameters interpretation

AFTER

Restart the conformity checking from the beginning.

REPARATION

IGNITION AND  INJECTION

17

17 - 81

AC010

FUEL PUMP RELAY

RECOMMENDATIONS

No failure must be present or memorized.
Before perform this checking, check the lines correspondence on the
electric diagram adequate to that vehicle.

Check that choke sensor is in operating condition
Mend the choke sensor if necessary.

Check the continuity between ways 1 and 3 of the choke sensor.
If there is no continuity, replace the choke sensor.

Check, under starter operation, the presence of the +12 volts at way 3 of the 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.

Check the wiring condition and the mass presence at the fuel pump.

Check the wiring insulation and continuity:
   Way 3 choke sensor       > fuel pump
Mend if necessary.

If the incident is persisting, replace the fuel pump.

Diagnostic – Parameters interpretation

AFTER

Restart the conformity checking from the beginning.

REPARATION