Lupo cutting out

[Kazerella]

Hello

I'm having problems with my Lupo at the minute. It keeps cutting out when I approach junctions and roundabouts. I've tried putting engine cleaner in so it's not carbon build up. I've also had the computer bit set back to default so it's not a system annomoly.

Just wondered if anyone else has had a similar problem with their Lupo and can offer me a bit of advice?