Workshop Manuals Factory service & repair Fiat
Fiat Punto (176) Factory Service Manual (1993-1999)02 · 10 Engine
02 · Engine

Displayed parameters

Make
Fiat
Model
Punto (176) Factory Service Manual
Year
1993–1999
Section
Fuel system (1242 MPI) › Displayed parameters
10 EngineDisplayed parameters

DISPLAYED PARAMETERS

DISPLAYED PARAMETERSUNITS OF MEASURE
Engine rpmRevs per minute
Injection timeMilliseconds
AdvanceAngular degrees
Absolute air temperature in inlet manifoldmm of mercury
Air temperatureDegrees centigrade
Coolant temperatureDegrees centigrade
Throttle opening angleAngular degrees
Battery voltageVolt
Lambda probeMobile bar
Step motorSteps
Integral componentSteps
Proportional componentSteps
TrimramNumber
Air conditionerON/OFF
Self-adaptabilityON/OFF

LIST OF ERRORS
RPM sensorLost signals
Throttle potentiometerAC-DC.
Absolute pressure sensorAC-DC. - Inconsistency between value transmitted to ECU and rpm level and throttle position.
Air temp. sensorAC-DC.
Coolant temp. sensorAC-DC.
BatteryPower < 15.5 V
Power > 6.2 V
Lambda probeAC-DC. - Incorrect CO value
InjectorDC.
Ignition coil 1AC-DC.
Ignition coil 2AC-DC.
Step motorDC.
Petrol vapour solenoidAC-DC.
Actuator relaysDC.
Control unitMicroprocessor or ECU memory operating anomalies are indicated.
Self-adaptive parametersThese indications occur if ECU self-adaptive limits are reached.

This indication shows that engine conditions are too far from normal and the cause could lie in faults of a mechanical nature.

ACTIVE DIAGNOSIS

The following active tests may be carried out using a Fiat-Lancia tester:

  • Petrol pump
  • Injectors
  • Ignition coils
  • Fuel vapour flow solenoid
  • Air conditioner
  • Rev counter
  • Step motor
  • Error deletion

Parts & tools for this job For 1993 Fiat Punto

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.