My son has an '03 Expert with the 1.9 non-turbo engine. I think the code is XUD9A.
It stopped on the motorway; after recovery and a battery recharge it started and ran for a couple of days without a problem.
A few mornings ago, he only got 100 yards in it and it stopped again. I've been tinkering with it, but I'm far from familiar with diesels, so could use some help.
Sometimes it will run for a few seconds; sometimes a few minutes. When it stops, it's just like the key has been turned off. When it runs, it does so faultlessly.
When you turn the key to the position before pre-heat, there is a chattering noise coming from the stop solenoid that lasts for a second or two. (It actually sounds a bit like an old SU electric fuel pump!) This has lead me to suspect that the fault is either with the stop solenoid, or the electrical supply to it.
There are two wires to the solenoid. I don't have a wiring diagram, although the only manual available, a Peter Russek one, is in the post. I need to know what voltages I should expect on these two wires.
Someone who *might* know thinks the supply may be from the 5volt logic of the ECU. I am also wondering if the other wire does some sort of feedback for immobiliser purposes.
The stop solenoid is currently removed from the pump; is there any way of partially dismantling the valve so as to stop it operating? I realise this will mean it won't stop, but that's better ATM than it not running!
BTW, the whole fuel delivery system is in one unit. There is no separate lift pump. A dealer has suggested to supply and fit a new one would be getting close to £1,000, which would not be viable.
I would be grateful for any help.
TIA
Chris