Hi to you all

I joined this site in the hope that someone might be able to help me fingers crossed.
I have a volvo 1998 2.5 turbo cd (low compression) and the car just keeps cutting out after a miles or so. It re-starts ok and might not cut out for a while then.
The engine man. light is not on.
I've cleaned the throttle body and idle valve and even put a second hand idle valve on and still no joy.

If anyone can help I would be most greatful as I'm surposed to be going away on holiday on Friday.

Thanks

Neil