renault espace rn helios 2068cc turbo diesel

Probably an air leak into the fuel system, probably at the filter . connect direct to the tank, bypassing the filter, and try again. if this doesn't work then bypass all the fuel lines, use a can of diesel as your fuel tank, have a flow and return pipe into the can, see if it then keeps running indefinitely.

It might be worth pointing out that a road test would be inappropriate at this point ;-)

You baby, I've road tested with a petrol can under the bonnet, and a jumper pack (not both at the same time). I used my petrol land rover for years from a fuel can in the back, covered over with a tarpaulin at MoT time. Don't know you're born, grumble, grumble........

Oh yes, my dad had an idea to make people drive more carefully: Fuel tanks must be mounted on the front bumper and there must be a sharp stake coming out of the middle of the steering wheel, mutter, mutter.......

Mrcheerful