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Hi, my golly (1.4 petrol Mk4) was doing this recently, it would be fine at hi revs but say coming up a slip lane off a motorway to a roundabout, the rev's would dip below its normal idling speed and then cut out. The solution was to get the 'Butterfly' valve (Google it) on the carb cleaned. I cant help you with disassembling or even where to locate it instructions because I just sent in to my local vdub speciallist and didnt cost too much because it was only to clean the part. Apparantley its a common problem as well.

Mark

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16y ago

What else can I help you with?