My son has a 2002 Berlingo van which runs on either petrol or gas. Last week, when trying to start first thing, the engine turned over readily enough but it wouldn't fire. An independent garage in London diagnosed fuel pump failure - this was replaced but it still didn't start. After more analysis and a lot more cash an 'electonic fault' was diagnosed and supposedly corrected and all was well for a week.

It has now failed to start again - showing the same symptoms. I don't believe two fuel pumps can have failed and I'm not sure about the electronics bit.

Before my son spends more money on analysis I wonder whether anyone has had a similar problem and had any ideas please?