Technical 2.2 ducato no start.
- Thread starter Nickcoles
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Technical
2.2 ducato no start.
Not sure if this would give you the same error codes ,but could give you the same non starting problem. Being Common Rail injection system, I have had several modern diesels not start at all though being fine the day before, due to just one injector developing an internal leak, thereby preventing the whole system from reaching correct operating pressure and so not starting, unlike in the old days when one injector could actually be totally removed/ fuel leaking all over the place and the engine would still start and run on the remaining cylinders.
A simple "leak off" test at the returns of each injector will soon confirm or discredit my comments if one measurement is excessively high compared with the others.
One other point, regarding your initial thread, was the vehicle running totally trouble free before battery went flat and required the fast/boost charge, as if excess high voltage during charging it may be worth checking for any fuses or other damage that could cause.
I was going to suggest SEARCH those codes on here.. but they look incomplete to me..
However..
They seem to point to the HP pump / rail pressure
Without massive rail pressure..its unlikely to inject fuel..
Can you measure rail pressure?
ECU should make that readable via OBD port
Your comment of battery charging hints at it may be weak
Low cranking speed drops rail pressure..as the HP pump is only crawling
A sniff of easystart is sometimes worth a try.. as it will then get everythimg warm once its fired on a couple of cylinders
It should then run on its own fuel.. as the pump will then be spinning
Once its idled for 5 minutes..
Turn it off... see if it restarts instantly
Should have a chance
I agree, well worth checking fuel pressure in Common Rail. If low then a cheap thing to check is measuring the diesel "leak off" at each individual injector return into four separate measured containers over a certain cranking period, as if just one injector goes faulty it can stop the whole system.I was going to suggest SEARCH those codes on here.. but they look incomplete to me..
However..
They seem to point to the HP pump / rail pressure
Without massive rail pressure..its unlikely to inject fuel..
Can you measure rail pressure?
ECU should make that readable via OBD port
Your comment of battery charging hints at it may be weak
Low cranking speed drops rail pressure..as the HP pump is only crawling
A sniff of easystart is sometimes worth a try.. as it will then get everythimg warm once its fired on a couple of cylinders
It should then run on its own fuel.. as the pump will then be spinning
Once its idled for 5 minutes..
Turn it off... see if it restarts instantly
Should have a chance
A rail pressure reading will be a good guide, also although you can buy a propriety kit to test "leak off" I have managed for many years just using four identical plastic containers and some hose and adaptors.
I first came across this many years ago on a 1.6 Ford Focus diesel that wouldn't start, diagnostics showed low Common Rail Pressure and the cure was one exchange injector. At the time quite a few Diesel Ford Transits with the 2.2 engine were being condemned due to metal particles from the low pressure pump destroying the HP pump. I wasn't directly involved with those so I don't know if that was the total answer.
Nickcoles
Member
Thank you all for your advice so far. Once my ecu comes back I’ll check fuel pressure if my diagnostic lets me. In the mean time I’ll do a leak of test I have one in the garage somewhere.
I’ll try and do this tomorrow and report back. I have even tried towing around the field to see if I could bump start and nothing. Thanks again.Nickcoles
Member
I was going to suggest SEARCH those codes on here.. but they look incomplete to me..
However..
They seem to point to the HP pump / rail pressure
Without massive rail pressure..its unlikely to inject fuel..
Can you measure rail pressure?
ECU should make that readable via OBD port
Your comment of battery charging hints at it may be weak
Low cranking speed drops rail pressure..as the HP pump is only crawling
A sniff of easystart is sometimes worth a try.. as it will then get everythimg warm once its fired on a couple of cylinders
It should then run on its own fuel.. as the pump will then be spinning
Once its idled for 5 minutes..
Turn it off... see if it restarts instantly
Should have a chance
Nickcoles
Member
Ok so ecu came back today. refitted. Checked fuel pressure while cranking and came back at 70000kpa. Used a bit of easy start and fired then died instantly. Just seems like it’s not getting fuel at all.
70,000 kpa = 700 bar
If reading was 7,000 that would be too low , worth checking again the number of zeros after the 7?
Plus what is the cranking rpm read from scan tool? If it does not go above zero suspect crank position sensor.
If reading was 7,000 that would be too low , worth checking again the number of zeros after the 7?
Plus what is the cranking rpm read from scan tool? If it does not go above zero suspect crank position sensor.
Nickcoles
Member
Hi. Crank sensor seemed to be fine show 0 and then showing a reading when cranking. Number of zeros was correct I will double check but I’m pretty certain it was correct. Thanks again nick.
Are you sure its cranking quick enough..??
Put jumpleads from a running vehicle and revisit your rail pressures....
But.. it stumbling on easystart does seem to point to a non.injection
Put jumpleads from a running vehicle and revisit your rail pressures....
But.. it stumbling on easystart does seem to point to a non.injection
Nickcoles
Member
I would 100 % agree that I’m not getting injection. I will stick a set of leads on at break time and see what I’ve got then. Other than the fuel pump could there be any other causes? Are these fuel pumps coded or anything. Thanks. Nick.
Nickcoles
Member
Hi so just check rail pressure again with jump leads connected spinning over like a goodun.
Rail pressure seemed even worse @40000kpa.
Rail pressure seemed even worse @40000kpa.
Nickcoles
Member
Hi again. Just having a fiddle about and found this lead/plug at the back left hand side of the engine any ideas as it’s not plugged in to anything nor can I find anything for it to plug in to.
Nickcoles
Member
Around 250 rpm if I remember rightly
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If no obvious connecting point in reach of cable, then possibly for an option that is not fitted. Oil level indicator for example.
Looking at the photo, my eyes are getting old , but is that a blank on the plug, as in it hasn't been used?
Nickcoles
Member
The padlock goes out on dashboard. Have just had it running only on easy start cuts out as soon as you stop spraying. but noticed as soon as it’s running the fuel gauge drops to zero and flashes.
