should i buy this:
Alfa Romeo Ersatzteile - Italia Ricambi - Thermostat Alfa 147 / GTV / Spider / GTA - V6 24V W23010931
Probably not since that the termostat seems to be a little bit different as I wrote before.
, Termo1.JPG seems to have the same dimensions and attachment to thermostat housing, but still I have not tried with any pattern part thermostat yet.
for the regulator, after turning the engine off the pressure stayed at 2.5 after 30 mins. so i think the regulator is fine...
Do not exclude fuel pressure regulator yet, so it can hold 2.5bar but can it regulate the pressure to 3bar ?
As far as i know there are 2 sensors on the thermostat , one of them is the red light on the gauge and the other one is the temp reading
The same sensor for red light and temp reading, it has a built-in switch that closes at 115°C so that the red lamp lights, WaterTempSender.pdf.
The other sensor is for engine management.