Thermoswitch Alfa Romeo 2000 - 3000 V6 / IE

The thermo-time switch limits the injection time of the cold start valve dependent on the engine temperature.
The switch is fitted on a location where the engine temperature can be measured correctly. When the engine is cold the thermo-time switch is closed and therefore the cold start valve injects additional fuel. But when the motor is already warm when starting the switch is opened no additional fuel is injected.In addition to that the maximum injection time is limited. Otherwise the fuel mixture would enrich too much and the engine would be flooded.
The original Bosch thermo-time switch is fitted with electronics and is therefore almost wear resistant.

Alfa Romeo:
Alfa 6 2.5 IE
75 2.5 - 3.0 V6
Alfa 90 2.5 IE
GTV 6
ES30 SZ / RZ
Alfa Spider 2.0 IE

Fiat:
124 Spider 2000 i.e.
132 2000 i.e.
Argenta [132] 2.0 l
Brava 2000
Regata 75 i.e. [138]
Ritmo 75 i.e. [138A]
Strada i.e.1.5 l
Uno 75 i.e. [146]
X 1/9 1500 i.e. 1.5 l

Lamborghini Countach QV

Lancia:
Beta 2.0 IE
Gamma 2.5 IE
Prisma 1.5 IE
Thema 2.8