the one right in the middle of the injector plate thing think its brown, mine hasnt been connected since i ripped my lump out and forgot to disconnect the wiring plug when lifting the engine it fooked the wiring,........

finally got round to fixing it today, reconnected it, hasnt made any difference to running, is it the thermo one? wot does it do?

 

Thermo-time switch. It controls the cold-start valve.

 

right cheers mate, explains why it runs on 3 for a second in the morning then, proberly be ok tomorrow morning then!