Broken down in Africa HELP

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TheAfricanSchoolRun

New Member
Posts
31
Location
Gambia, Sheffield
Hi ok I really need some help here mechanics out here aren't so hot....

So I have a 2004 d2 v8, its been in storage in Africa for a year, asked for it to be run regularly but assume it hasn't.

Had to do few bits n bobs to get it good to go on our return journey to UK. Fuel pump, brakes, service.

After few days tootling around with no issues, we set off (4000 mile trip) after 50 miles engine cut out. No warnings of this, although ACE light had come on but had gone off again, its about 40 c in the sun so the heat plays tricks on the car! Maybe something up with ACE but it won't stop us driving home so it can wait.

Engine wouldn't re start. Plugged hawk eye in and it gave an error code about the fuel mixture but we think this may be a red herring as cleared the code and it hasn't come back and there are no other error codes on the engine management system.
Re set emergency fuel cut off switch just in case and engine started for few mins then cut out again. This repeated for about 6 hours, at night (when cooler) engine ran for 30 mins then cut out wouldn't re start. Checked all sensor plugs, took them apart and cleaned them, idle air control valve was getting v hot, dunno if it does normally or not, was buzzing slightly too...?

Mechanic took it to someone who has a diagnostic system, albeit probably an old one, he thinks the crankshaft sensor is to blame but is worried for the ecu....! He took crankshaft sensor out, it was full of oil n swarf, cleaned it n returned it and car ran for over an hour, went for second test drive whilst hot and it cut out again, wouldn't start for over an hour.
If its the ecu we are struggling as apparently its hard to 1) get one out here 2) if you can get one then no one can fit it... Even if we tow car to main dealer in Dakar (one full days towing!) they may not be able to do it. We are a bit screwed if we can't get it going!

So questions.
1)Any ideas what else could be to blame?

2) Can an ecu be swapped for a second hand one, what do we need off donor vehicles if so and how hard is it to reprogramme. Or are we better off waiting (maybe a week!) for a new ecu and trying that as maybe its easier to reprogramme??

3) any other idea what on earth is going on with it, seems to be electronic and sadly we are in a bad place to fix electronics!

Thanks in advance
James
 
Crank sensor does sound favourite - especially if it was covered in oil and swarf. It shouldn't be though as iirc it reads from the flywheel so maybe you have a rear main leak?
 
Check and clean all your earths to the engine. Other than that I would start with a crank sensor. The swarf is worrying though. I'm unsure where the crank sensor is on that engine but swarf cannot be good.
 
Sounds like a fuel related issue to me. You say it ran for a few minutes when you pressed the cut-off switch then ran it for 30mins when the temperature was lower (less vapourisation).
How confident are you that the new fuel pump is doing its job and have you checked it's not picking up debris from the tank especially as it has been standing for a year ?
 
Sounds like a fuel related issue to me. You say it ran for a few minutes when you pressed the cut-off switch then ran it for 30mins when the temperature was lower (less vapourisation).
How confident are you that the new fuel pump is doing its job and have you checked it's not picking up debris from the tank especially as it has been standing for a year ?

The fuel tank is new (long range) and was drained other day, plus was full of fuel. It has since restarted without pressing the cut off switch. The pump was new and an original part, I believe the injector pressures are as they should be. Apparently when it cuts out all power to the ecu (ems) is cut and a relay has now been replaced and may have been sticking.
 
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