1.4hdi engine cutting out

Hi!

Can I ask you what you think?
We have a 2006 c3 citroen 1.4hdi with 262k kilos on the clock.
Car driving fine and then suddenly without warning cuts out.
Then in the past sometime while cutout excallurate again.
Sometimes this happen 2 to 3 times in 1 trip, other times you can drive for hundreds of km without any cutout.
Sometimes it cut out to a standstill where it seems that you need to bleed the diesel system.
The problem become worst and it cut out while driving without any luck to get it started. We tow the car home try to running start without success.
Then the next day I bleed the diesel system and off we go for 100km and then same thing.
We cant get it started again, tow it to citroen dealer, diagnostic done. Show the crank sensor faulty. Replace it. Car started. Same problem after 300km.
Car cut out, tow it for 100m, starts, driving for 20km, cuts out, towing again nearly 2km starts driving little bit, cut out, towing 50m start. Fine with starting in the morning, After cutting out, while trying with the starter, the engine will turn nice and quickly but with no luck to start.
We also replace the cam sensor. Was not the problem.
We had the same problem 100k ago when the key have a transmitting problem.
Yesterday while idling the engine cut out, and trying with the starter struggle but after 10s started again.
Citroen dealer told me that if the diesel supply was the problem, it will struggle to start in the morning or after standing a long period.
I read on google that the egr wont cut the engine but rather give poor performance.

What do you think?

Questions.
Does the key transmit during the whole trip?
The key can transmit and then skip or stall to transmit causing the car to cut out?
Does that cut off the fuel supply?

Will so glad if you can give me some advice where to find the fault.
Much appreciated

Nico1 wrote: ↑Mon May 03, 2021 7:14 am citroen dealer, diagnostic done. Show the crank sensor faulty. Replace it. Car started. Same problem after 300km.

Hello

You had diagnostics that identified a fault, changed a part but the fault remained.

The next thing to do is do diagnostics again.

You need to find the fault to cure the problem.


It is possible to read engine faults yourself without the expense of a Citroen dealer by using a Diagbox/Lexia clone tool (information here).

You can use your own lexia/diagbox to read the codes many times. delete them, check them and run tests in live data.

This is how you can solve this problem with your engine cutting out randomly.

Sounds simialr to the problem I had which turned out to be the fusebox under the bonnet. Have a read of the thread questions-about-a-diesel-powered-citroe ... 5-s10.html

Hello. I know this is an oldish thread but for somebody that is experiencing a similar problem with a 1.4HDi engine I would suggest that if a crankshaft position sensor fault flags up (PO339) especially after a cambelt/timing belt change and assuming that all pulleys line up with their relative locking points, it is highly likely to be a reluctor ring issue. The reluctor ring is part of the crankshaft pulley that drives the timing belt. If after a cambelt change the crank sensor is not set up properly with an air gap of about 2mm the sensor can rub on the reluctor ring and damage the magnets around that ring causing confusion to the engine timing ECU.

Hope this helps somebody! :)