
Loosen the screws (1) and remove the relay supporting bracket (2), disconnect the connectors (3) and remove the control unit (4) from the vehicle.



Layout of engine control system and other components
Reassembly of the control unitAnti-pollution system and auto-adaptive strategy
Efficacy of the catalytic converter and oxygen sensors
To comply with current emissions legislation, the diavel is equipped with a
trivalent catalytic converter, which oxidises co
(carbon monoxide) and hc (unburnt hydrocarbons) and reduces nox (nitrogen
oxides).
The image shows the exhaus ...
Air temperature sensor
Introduction
The engine control system on the diavel uses a sensor that measures air
temperature. This sensor has a resistance of
ntc type (negative temperature coefficient), that reduces its own value when the
temperature increases. The air
temperature sensor allows the engine control unit t ...
Indicator cons. - Instantaneous fuel consumption
This function indicates the "instantaneous" fuel consumption.
The calculation is made considering the quantity of fuel used
and the distance travelled during the last second. The datum is
expressed in "l/100" (litres / 100 km); it is possible to change
the units of measurem ...