P38A 2.5 diesel engine cutting off

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compadre

compadre

Member
Posts
15
Goog morning, all!
Have some trouble with my P38 diesel, year 2000, auto. Yesterday driving on a highway 120km/h constantly, after a hour the engine suddenly twitched a few times on acceleration.
Ok, and then after another half hour started to twitch more and more and without acceleration too. Well barely came home and at idle the engine has dropouts and cutt off.
Starting normally, still dropouts and cutt off. Connected nanocom and first three faults cleaned up,
1.jpg 2.jpg 3.jpg

started again and a new one came up:
4.jpg

Where do i start? Should i replace the CPS or injector #4 first?
I have a spare engine but they not qite the same. Mine is an EGR type, the other one for spare parts is from an '98 P38 non EGR tye. Im shure the CPS are the same but not shure about the injector.

Any advices, tips, hints please...?
Thanks
 
If you swap out the cps DO NOT undo the bracket holding it just remove the cps.
as you have a spare nowt to loose there in swapping it.
i believe if the no4 injector fails it will run to a default setting which will not cut out like that.
 
wammers said:
Only problem is number four injector is not a speed sensor and has nothing to do with fuel flow.
Click to expand...

I think that was from the first set of faults.

CPS is dead quick and easy to swap over but wiring can be brittle so take care.

Worth checking EDC fuelling screen and modulation. That should give away if #4 is giving a signal or not. If on default I think it shows 50%.

Checking lift pump is working is quick and easy. Follow Wammers guide in the Technical Section.
 
Grrrrrr said:
I think that was from the first set of faults.

CPS is dead quick and easy to swap over but wiring can be brittle so take care.

Worth checking EDC fuelling screen and modulation. That should give away if #4 is giving a signal or not. If on default I think it shows 50%.

Checking lift pump is working is quick and easy. Follow Wammers guide in the Technical Section.
Click to expand...
As @RangeRoller dt said the mil light would be on if there was no signal from number 4 injector
 
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