as me dads got a 2.0 16v OMEGA (Automatic)
and when in drive mode it just cuts out, no warning or nothing. Its quite common and happens on most journeys.
It idles at 600 rpm, which i thnk is slightly low for a 2.0 litre motor, but could just be vauxhalls, i dont know.
but when your on the throttle, its fine, then when you come off the throttle to slow down, if your off the throttle for long enough it sometimes cuts out, but mainly when you come to a stand still.
any help would be appreciated.