Those leak off measurements look to be OK I would say.
A full version of MES or similar would give results including "live data" that people on Forum can give good advice on.
Technical Engine cuts out
- Thread starter Keith1950
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Technical Engine cuts out
A full version of MES or similar would give results including "live data" that people on Forum can give good advice on.
Several people have said do not go down injector problem route yet-I wholeheartedly agree with them.
Your first post states code for fuel pump primary circuit - focus on this problem.
Provide power to the in tank pump so it stays running , check it doesn't cut out (indicating pump issue)
With in tank pump running from jump wire start engine and see if runs longer than 40 seconds
Your first post states code for fuel pump primary circuit - focus on this problem.
Provide power to the in tank pump so it stays running , check it doesn't cut out (indicating pump issue)
With in tank pump running from jump wire start engine and see if runs longer than 40 seconds
Last edited:
Keith1950
Member
Thanks for reply .
Injector will be my last item
The pump circuit fault has disappeared, one can also hear the pump running prior and to and after the engine cuts out so I know the fault is not in that ,also one can feel the relay cutting in and dropping out ,
This does not mean fuel pump is putting out enough fuel nor that the filter has been changed (it was serviced before we bought it November last year
) which will be next job
There also may be other sensors to check as well
If no joy then a garage may be the answer
Injector will be my last item
The pump circuit fault has disappeared, one can also hear the pump running prior and to and after the engine cuts out so I know the fault is not in that ,also one can feel the relay cutting in and dropping out ,
This does not mean fuel pump is putting out enough fuel nor that the filter has been changed (it was serviced before we bought it November last year
) which will be next job There also may be other sensors to check as well
If no joy then a garage may be the answer
I mentioned at some point about engine ECU stopping engine if detecting a low oil pressure or level sensor warning issue, also I once had something similar after changing a clutch on a customers car and dislodging the oil sensor pressure switch, it would start, move a couple of yards then die each time you restarted it.
So it could be a faulty sensor talking to the ECU.
I see this on Forum from the past re a Fiat 500 2013 plate, it mentioned Fiat Dealer changed a wire but no further detail???https://www.fiatforum.com/threads/oil-light-suddenly-comes-on-and-engine-switches-off.447829/page-2
I see @varesecrazy was replying to the post but OP didn't reply around 8 years ago.
So it could be a faulty sensor talking to the ECU.
I see this on Forum from the past re a Fiat 500 2013 plate, it mentioned Fiat Dealer changed a wire but no further detail???https://www.fiatforum.com/threads/oil-light-suddenly-comes-on-and-engine-switches-off.447829/page-2
I see @varesecrazy was replying to the post but OP didn't reply around 8 years ago.
Keith1950
Member
I am trying to work things out in my head
When one switches off the ignition what actually is stopping the firing sequence,
I remember from a long time ago there were physical knobs that one would pull out to stop compression then I think solenoids to electrically do the same .
Very primitive but what happens with the ducato to stop the engine
Regards Keith
When one switches off the ignition what actually is stopping the firing sequence,
I remember from a long time ago there were physical knobs that one would pull out to stop compression then I think solenoids to electrically do the same .
Very primitive but what happens with the ducato to stop the engine
Regards Keith
Communicator
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May I substitute "injection" for the words highlighted in bold above.
Yes in my first vehicle which dated from 1962, the engine stop control was a knob that you pulled. It connicted by a wire to a lever on the injection pump, which operated the fuel cut off valve. OK until the wire pulledout of the pump. I had to dive under the bonnet and operate the lever by hand.
My 2.8jtd has a Bosch ECU which receives an IGN + via F16 (IGN) supply at A58. (Not shown on engine control diagram.) I assume that loss of the IGN + shuts down the main power to the ECU by releasing Main Injection Relay T09. No power to injectors means no injection of fuel.
On the 3 litre F16 is shown as connecting to A28, but the effect will be the same.
Long time ago. Was there a man with a red flag in front?
ECU Computer controls everything, so no fuel and no signal to open the injectors etc.
Keith1950
Member
OK thanks that means I can feel /hear if that relay cuts out before-during-after engine shuts down
Keith1950
Member
Late 1950s when my dad used to take me around the valleys delivering biscuits.Long time ago. Was there a man with a red flag in front?
ECU Computer controls everything, so no fuel and no signal to open the injectors etc.
I realise ECU controls things but I was asking what physical thing happened
Which Communicator has answered with reference to relay
The first part of my answer was a joke hence the winky faces, the second part was the answer.
I was working on diesel Land Rovers and tractors etc. as part of my apprenticeship in the late 60s onwards, so fully aware of early means of injection control and cut off etc.
Keith1950
Member
I realise that was in jest
Keith1950
Member
Hi
Just a quick update observation and question
The RAC engineer said that the fuel rail.pressure was 450 bar checking with my launch crp 429c scanner it recorded 655350 kPa is that 6553 bar? , if so do you think my scanner is telling the truth .
Would such a high pressure be possible ?
And would that stop the engine ?
I also jave to add scanner hasn't given same results consistently so have doubts about it
Frustrated from cardiff
Just a quick update observation and question
The RAC engineer said that the fuel rail.pressure was 450 bar checking with my launch crp 429c scanner it recorded 655350 kPa is that 6553 bar? , if so do you think my scanner is telling the truth .
Would such a high pressure be possible ?
And would that stop the engine ?
I also jave to add scanner hasn't given same results consistently so have doubts about it
Frustrated from cardiff