Technical 2.3 engine cutting out?

[FiatTechSam]

Sure do a leak off test but low pressure isn't going to cause a canbus error, the cutting out coincides with the canbus error, and theres a good chance in fixing that error you'll find loom damage, water ingress, corrosion etc.

If the injectors were leaking badly enough to triggering limp mode under heavy load you'd usually have something like p0089 or p0191 though not guaranteed. Plot of requested vs actual pressure and regulator % would verify it.

I am a technician at a fiat main dealer, the fault codes p0087 CAN cause a can line fault, I've done 100s of ducato's like this, it's a common problem on them. When the engine light illuminates it looses power and brings on the abs light and esp light, when you check the error codes you will have p0089 and the can fault to the abs ecu, this happens because it temporary shuts down the abs ecu, creating a can fault

 

[Stevo101]

Sam. So if we are talking injectors is it all of them that have to be replaced or can it be just one?

Would it have to be genuine parts or would another do the same job without the price tag?

 

[FiatTechSam]

Get them tested, may only be 1 injector, like I said I know these vehicles suffer badly with injectors, I don't think you can get after market injectors, however fiat sell re-con injectors which are good as new and come with 12 months warranty

 

[barrya]

hi steve mine starts to deteriorate as you progress until finaly cuts out altogether. once rested for a period of time it goes ok for a period of time then starts misfiring until progressing to a full stop again.the time between the misfires progressively decreases until it stops altogether this can be overa reasonable distance i go along with the idea it could be electrical but have to go along with italy as can maybe get reimbursed.

 

[barrya]

my vehicle is at a fiat dealer and has been there since 12/04 the vehicle doe s become undriveable and last two times had to be towed to the dealer it seems to me that fiat do not seem to have any real answers but just stabbing in the dark sam seems to have more idea than anyone i have spoken to. i use this van for business purposes and am going broke very quickly

 

[barrya]

hi this is to sam as you are with a dealer can you tell me if this fault is common and are fiat aware of the problems associated thanks

 

[Stevo101]

Right I have done a home made version of the leak off kit.

The wife had two almost empty spice bottles and I had some fish tank hose which I used to use for venting a battery.

It was a bit messy as I did not have any rubber covers for the original leak off pipe and I could only do two at a time! So a bit of diesel came out but didn't effect the test I don't think? There was no leakage from my attached hose.

Looking at the engine from the front of the van going left to right. I ran the experiment for around 40 seconds. The engine was cold and it was done at tick over.

1 returned around 70-80ml
2 3 & 4 all returned around the 20-25 mark.

I had to stop at 40 seconds as my spice bottle was full on No.1

This to me makes me thing that no.1 could be the issue as all the other were returning similar.

Although If I had run it for a minute (an extra 20 seconds) then I am sure all of them would have been over the 20ml mark...

Any comments?


Also ran an injector corrections graph, this also confirms what I have found on the leak off test.



Although when I hold it around the 2,000 rpm the picture changes slightly!

 

[Stevo101]

Being one for numbers I could not settle with estimates on my figures.

So I rigged up a better kit and ran it again.

1 min. Cold engine. Tick over.

No1 = 106ml
No2 = 24ml
No3 = 24ml
No4 = 22ml

 

[corcai]

http://www.ebay.co.uk/itm/Fuel-inje...163618?hash=item33b6338c22:g:zYsAAOSwxp9W-a4q

Cheap as chips if its a match to your part numbers.

 

[corcai]

I am a technician at a fiat main dealer, the fault codes p0087 CAN cause a can line fault, I've done 100s of ducato's like this, it's a common problem on them. When the engine light illuminates it looses power and brings on the abs light and esp light, when you check the error codes you will have p0089 and the can fault to the abs ecu, this happens because it temporary shuts down the abs ecu, creating a can fault

My understanding was that he had no p faults since changing the filter, but definitely looks like number 1 is borked from the leak off test.

Throwing a can error on low pressure / excessive duty cycle is very unusual sounds like a bug. Could be the increased duty cycle on the regulator putting noise on the can line.

 

[Stevo101]

That is correct re the p codes.

I am getting a garage to change the injector. I don't want any issues where it is stuck in the head or bolt seizing etc.

Fingers crossed.

 

[FiatTechSam]

I thought you might have a faulty injector, for best results you are meant to do the test when the engine is hot, but even when you done the test cold and no 1 injector is rocketing out fuel like a jet thend obviously you have problem, as for the other 3 injectors,Fiat say that anything over 20ml in a 60 second period then the injectors should replaced, it may not be an issue now but they will eventually get worse and you will end up in the same situation

 

[Stevo101]

While I entirely understand what you say, sadly at this time I do not have around £1000 to drop. I intend to do the one for now and see if this solves my issue.

If it does then I can always get the old injector refurbed and source a couple of other refurbed ones from elsewhere. This should lower the overall cost a little.

The work is being done Wednesday as I didn't want any complications doing it myself.

 

[Stevo101]

Well today the injector was swapped out for a new Iveco one, which was half the price of the Fiat one and coded to the vehicle.

I have done a good 40 miles test drive this evening and the fault has gone.

RESULT - Faulty injector.

I now intend to send the old one of for refurb should I need another one any time soon.

Thank to everyone for their input and interest it has been appreciated!

Barrya - Any news on yours yet fella?? I am hoping you have the same luck as me with the new injectors being put in!

 

[Deefordog]

Nice one Stevo, well worth the patience and all the effort you put in.
Congrats

 

[Stevo101]

Thanks guys. I'm chuffed although I'm kind of expecting the engine to do it again. I guess I need to build confidence up in it again.

 

[Stevo101]

Barrya.....any news pal?

 

[daveinspain]

Hi Stevo
Glad you got your problem sorted at last! Can you please tell me which OBD reader you use? I´ve got a x250 with a 2011 2.3 130bhp engine, and bought an ELM327 reader for it, but it won´t work with it. (Works fine on my car, so not the reader). Thanks in advance, Dave

 

[Stevo101]

Hi Stevo
Glad you got your problem sorted at last! Can you please tell me which OBD reader you use? I´ve got a x250 with a 2011 2.3 130bhp engine, and bought an ELM327 reader for it, but it won´t work with it. (Works fine on my car, so not the reader). Thanks in advance, Dave

I used the MultiECUscan software and the official cables. ?

 

[barrya]

hi steve still waiting on injectors from italy absolute discrase cant do anything else at this stage hope yours still going ok