[DML] car won't start when hot

[Darrin Jacobs (Caroline Bolland) <Caroline.Bolland@xxxx>]

I have a problem. My car won't start when it's hot.

It loses pressure (doesn't hold 3 bar pressure for
half a hour). Apparently the fuel evaporates in the
line and the car won't start until engine has cooled
sufficiently for fuel to travel through.

Have changed one way valve in fuel pump, cleaned
and checked metering head, checked all injectors
and seals. Have changed oxygen sensors.

The only thing I haven't checked is a valve at the
back of the engine (looking at the engine, there's a
valve on the engine wall at the rear left - I don't
know what this is and it's the only thing I haven't
checked). Could this be the problem?

Any other ideas?

Darrin Jacobs