Description
(1) pre-heater plug
"a" supply switch
Role
The pre-heater plugs enable a rapid rise in temperature in the combustion chambers during the starting and cold-running phases
The pre-heater plugs are also used for depollution, contributing to the reduction of nitrous oxides and soots
Function
The preheater plug is an electric resistor element which heats up when it is supplied
Regulation of the temperature is by regulation of the electrical supply (Open cycle ratio)
(1) pre-heater plug
"a" supply switch
"b" heater element
Electrical features
(1) pre-heater plug
"a" supply switch
NoteThe earth is taken directly from the body of the preheater plug
| designation | Minimum value | nominal value | Maximum value |
|---|---|---|---|
| supply voltage in preheating (direct voltage) | - | 11 Volts | - |
| resistance of the pre-heater plug (at 20 °C) | 0.6 ohms | - | 1.4 ohms |
Programming/initialisation
Not applicable