Technical 2007 Ducato 250 2.3 130 multijet keeps cutting out DTC codes P0271 P0268 and P0697 (C circuit open)

[geeki]

This issue has been going on for over a year now.
Local garage recommended having new injectors fitted, made no difference.
Had ECU rebuilt, made no difference.
Took it to a highly recommended auto electrician, he changed the injector connectors because he said he couldn't get a steady resistance reading from injector loom, still cutting out but the only DTC I'm getting now is P0268 Cal 3 injector circuit high.

 

[fgk john]

This issue has been going on for over a year now.
Local garage recommended having new injectors fitted, made no difference.
Had ECU rebuilt, made no difference.
Took it to a highly recommended auto electrician, he changed the injector connectors because he said he couldn't get a steady resistance reading from injector loom, still cutting out but the only DTC I'm getting now is P0268 Cal 3 injector circuit high.

Hi did you manage to sort out this problem ? .I'm having the same problem with one I'm currently working on

 

[geeki]

Hi did you manage to sort out this problem ? .I'm having the same problem with one I'm currently working on

Hi John,
Yes I think I have got it sorted , to get a better understanding of the issue first have a look at my original post from 24th Oct 2022, it might save you some time and money.
After my post in June I was recomended a local garage who specialise in diagnostics, his first attempt was to re-wire #3&4 injectors but that had no effect
I took it back to him and asked him to swop over 2&3 injectors, the result was that the fault moved to #2 he fitted a reconditioned injector for me and that seems to have cured the fault although I have only been able to do a short road test as it is now off the road for winter.
The injectors I had fitted originally were supposed to be new from a reputable supplier in West Yorkshire,I now believe they were reconditioned and that at least 2 of them had intermittent faults as on a couple of occasions the OBD scan has showed 3 & 4 over voltage I will see what next year brings.
If you find the injectors are faulty think carefully before having them replaced, the bolts are notorious for shearing when been removed resulting in having to be drilled out (very expensive).
If I can be of any further help don't hesitate to ask.
Good luck.