ill be interested to hear the results of this. my mates valver astra is bloodt terrible for this. stalling at junctions etc etc. when he rolls up outside i know its him case when he puits his foot on the clutchthe car almost dies then the revs shoot up to about 2000 before goin back down. it also cuts out intermittently at idle. sounds like we may have the same kinda problem.
tried new icv n loads of stuff to no avail
he has no ecu light on either.