Dacia Solenza 2004, Repair Manual

Page: 167 / 891

IGNITION AND INJECTION
17
17 - 73
ET039 IDLING ADJUSTMENT
RECOMMENDATIONS
No failure must be present or memorized.
Attention to the recommended value of idling RPM: PR041
Check the
connection and condition
of the idling regulator connector.
Replace the connector if necessary.
Check the resistance of the idling regulator.
Replace the idling regulator if necessary
Check the insulation and continuity of the connections between :
Pin 12 injection computer >pin B idling regulator
Pin 41 injection computer >pin A idling regulator
Pin 42 injection computer >pin C idling regulator
Pin 72 injection computer >pin D idling regulator
Mend if necessary.
Idling regime
< minimal limit RECOMMENDATIONS 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 elements are correct, replace the idling regulator
Idling regime
> maximal limit
RECOMMENDATIONS 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 valves 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 hoses of the oil vapors re-aspiration circuit.
- Check the valves clearance and the distribution setting.
If all checked elements are correct, replace the idling regulator
AFTER Restart the conformity checking from the beginning.
REPARATION
Diagnostic – States interpretation
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