Actuators
- Make
- Fiat
- Model
- Punto (176) Factory Service Manual
- Year
- 1993–1999
- Section
- Fuel system (1242 MPI) › Actuators
Emergency system (Recovery)
Automatic diagnosis aims to detect faults in the following components:
Actuators
- Injectors
- Step motor
- Coils (ignition coil)
- Vapour recirculation solenoid
- IAW system failure warning light.
- Fuel consumption gauge (where fitted)
SENSORS
- Rpm and TDC sensor.
- Absolute pressure sensor
- Coolant temperature sensor
- Intake air temperature sensor
- Throttle position sensor
- Lambda probe
When a fault is detected, a warning light lights up on the dashboard and, in the case of certain faults, the number of engine revs falls.
In the case of sensor failure, the system implements signal reconstruction strategies (recovery) in order to ensure engine and catalytic converter operation at an acceptable level without affecting function.
Under these conditions, the vehicle may be driven to a service centre for repairs.
The warning light goes out when the fault is removed.
The system temporarily memorises faults within the control unit in order to facilitate service operations.
Diagnosing with the FIAT/LANCIA TESTER
Socket (6) for bi-directional diagnosis on the connector of electronic control unit (5) is used for connection of the F.L.T.
The TESTER must be connected to the ECU as follows:
- Connect the Fiat-Lancia Tester to adaptor «ADAPTER ADT 101 A»
- Supply TESTER via cigar-lighter socket (7), or by connecting directly to the battery (a special alternative lead is provided for this purpose).
- Connect the TESTER socket to the ECU socket (socket always located in engine bay).
The instrument is able to supply the following information:
- Engine parameter display
- Error display
- Active diagnosis
Parts & tools for this job For 1993 Fiat Punto
- PARTFuel filterSearch: Fiat Punto 1993 fuel filter
- TOOLFuel pressure test kitSearch: fuel pressure test kit
- TOOLFuel line disconnect toolSearch: fuel line disconnect tool
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