Technical Ducato Strange Problem

[zamorano007]

Hi Frineds,
My Fiat Ducato goes so far properly. The problem is he goes out during the ride irregularly, that is, the Tachonadeln fall all down and the reserve indicator is blazing and the engine light is on. Ignition Off and on Again, the Ducato keeps running smoothly, but the engine light comes on.

This sometimes happens 2 times a day or even 15 times. Who can help me? The read was also several times:



- Error code
- DTC P0271 Injector 4 Voltage high

- DTC P0268 Injector 3 Voltage high

- DTC P0265 Injector 2 voltage high

- DTC P0638 Throttle Actuator Controller

- DTC P0401 EGR Valve

- DTC P250A Unknown

These are the error codes he displays



a few more dates:

Fiat Ducato 250

2.3 120 MJET

Year 2007


Has anyone ever had such a thing? Does anyone have a tip?
Best Regrads.

 

[pwhooftman]

With so many error codes, my first thought is a fuse box (under the bonnet) which suffers from water ingress, a common problem on the X250. Undo the two 10mm nuts from the cover of the fusebox (behind the left headlamp) and see if there is any water in there, or if any relay contacts have corroded. If so, there will be water inside the fuse box, which in fact is a buch of metal plates stacked on top of eachother, separated by plastic layers. I managed to dismantle mine and dry it all. I could see black short-circuit marks on the plates.

https://postimg.cc/gallery/30et02wys/

 

[zamorano007]

Hi pwhooftman:
My ducato did not examine the place, we did not find any electrical signs, I checked the fuse box, there is no water damage in the fuse box, yet I replaced the fuse box with a new fuse box, the car stops moving while on the road, fuel pressure sensor, rail pressure sensor, fuel injectors, fuel filter, oil pressure sensor, manifold pressure sensor, air pressure sensor, eccentric position sensor, flywheel sensor are all tested one by one, the ecu of the car is connected to the computer at the water mechanic, the motor internal wiring and sensor sockets are checked The result is the same vehicle on the road while driving in the city in normal cruising bend or normal speed while cruising spontaneously stops, there is no abnormality in the work sound and exhaust smoke of the vehicle, have another idea or overlook? Yours truly

 

[zamorano007]

Hi Friends, Good News

My ducato strange problem is solved,
Transactions in order

4 fuel injector is changed
Ecu changed
High pressure fuel pump changed
Engine wiring harness changed.