Hello everyone, may I say that between you, you've helped/saved me loads.
My car is a 2.0dti elite esstate 04.
My car 'hunts' when starting partially warm. I've traced it to one of the vac pumps to the right hand side of the grill, what do they do? What sensor feeds the rightmost one its information?
If I take the vac pipe that runs to the air intake flap off and block the vac pump outlet off it eradicates the problem.
Vac pumps are both okay, I just need to know where/what do the wires go to.
Am I right in thinking it must 'act' on a temperature sensor somewhere?

Many thanks, and regards in advance.