1.3 MULTIJET 16V
(75 & 90 HP)
FIAT PUNTO TRAINING OUTLINE
Fiat Auto S.p.A.
After Sales Training
3.10.17
Injection pressure closed cycle check
Depending on the engine load (as determined by processing the signals from the various
sensors, i.e. engine revs; engine temperature; RDS4 rail pressure sensor; fuel temperature),
the control unit drives the regulator in order to obtain optimum line pressure.
3.10.18
Electric balance check
The control unit varies the idling speed depending on the battery voltage:
it increases the injection time of electric injectors (CR1MI2.2);
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it controls the line pressure by means of the pressure regulator (DRV2).