Technical Engine cuts out

[lycopersicum]

It's for the 40 / 60 seconds its running, i will take time today to check against another car in the household.
I've reset to imperial psiView attachment 470766

That's just the same 655350 value converted to psi. You are not seeing any real data here, just an error turned into a meaningless straight line

 

[Keith1950]

That's just the same 655350 value converted to psi. You are not seeing any real data here, just an error turned into a meaningless straight line

I know thst but that is what came back. Doesn't really answer my question though

 

[jackwhoo]

A scan tool may read correctly on one make and model of vehicle but that does not mean it will read a different vehicle correctly.

I think @lycopersicum has attempted to answer one of your questions fully with good grace.

 

[diego74]

Sorry if I missed it, but what vehicle and engine are you having issues with?.

2.8JTD uses 275/300 bar in high pressure fuel lines, so if you are overpassing that value the ECU will stop the engine. The same happens if the low pressure fuel pump performance decreases due to a problem on it, this can be diagnoses with a fuel pump gauge connected to the fuel line and it should be around 4/5 bars.

 

[Keith1950]

Sorry if I missed it, but what vehicle and engine are you having issues with?.

2.8JTD uses 275/300 bar in high pressure fuel lines, so if you are overpassing that value the ECU will stop the engine. The same happens if the low pressure fuel pump performance decreases due to a problem on it, this can be diagnoses with a fuel pump gauge connected to the fuel line and it should be around 4/5 bars.

Thanks for the reply much appriciatef

 

[Communicator]

Sorry if I missed it, but what vehicle and engine are you having issues with?.

2.8JTD uses 275/300 bar in high pressure fuel lines, so if you are overpassing that value the ECU will stop the engine. The same happens if the low pressure fuel pump performance decreases due to a problem on it, this can be diagnoses with a fuel pump gauge connected to the fuel line and it should be around 4/5 bars.

@diego74

Hi, yes you did miss the engine detail in post #1. 3 litre multijet.

 

[Keith1950]

hi all
although i didn't have any problems before . on the exhaust gas solenoid under the middle part of the scuttle the pipe running to the brake servo tee is a soft plastic one and gets compressed when the engine is running , is this correct ?

 

[jackwhoo]

I don't understand your question, are there typos in post?

Or are you asking should vacuum hoses collapse under vacuum? Answer to that is no vacuum hoses should not get compressed / collapse under vacuum.

 

[Keith1950]

I don't understand your question, are there typos in post?

Or are you asking should vacuum hoses collapse under vacuum? Answer to that is no vacuum hoses should not get compressed / collapse under vacuum.

Hi The pipe from the egr to the valve bolted on to a bracket in the middle of the scuttle is rubber however the pipe from the valve to a tee piece on the brake vacuum pipe is made of a soft polythene type material , which seems odd
I agree that vacuum pipes should not collapse but that's what has been there since I have had it
So I am asking if others with the iveco engine have the same

 

[jackwhoo]

Does the plastic vacuum pipe collapse when under vacuum?
If it does collapse it is incorrect /faulty and requires replacement.
All manufactures for many years have used hard plastic vacuum pipes , usually black but sometimes colour coded for which components they connect.

 

[Keith1950]

Does the plastic vacuum pipe collapse when under vacuum?

Yep it does indeed as it is connected to the brake vacuum supply pipe to servo .
My issue is we have had this since November and probably done 3/400 trouble free miles , just seems odd

 

[Keith1950]

hi all
I just need some pointers of where to go from here
I found the reason why the engine is stalling i just wondering why eg. sensors etc .
the flap inside the body of the throttle is staying partly open ( about 3mm is suppose) then after 40 sec or so it shuts completely causing the engine to stall. if the terminations are unplugged or indeed if a screwdriver is inserted to keep the body between flap and body the engine will keep running
Due to the EGR solenoid being rusted and not operating i have fitted a new one ( an oe ) but i am not convinced its working as one can blow and suck on both ports so that allows the vacuum to flow straight thru presumably closing the EGR valve straight away + there is no click if terminals are flashed
However disconnecting the outlet vacuum still allows the engine to stall
The fault codes this morning were P0638 p0235 and p0403
the throttle itself opens and closes smoothly with no sign of rust .
it is a pierburg body
thanks

 

[Keith1950]

Some pics

 

[Keith1950]

Just in case anybody else gets this problem .
Cured by changing EGR Solenoid and faulty peirburg throttle body
Thanks for all the input

 

[jackwhoo]

Just in case anybody else gets this problem .
Cured by changing EGR Solenoid and
faulty peirburg throttle body
Thanks for all the input

Good news , great update
On the ops other thread , the throttle fault was cured by a QH replacement throttle using the fiat adapter cable already on vehicle.

 

[Keith1950]

All sorted now thanks .its the corrosion problem again , the replacement pierburg throttle seems to have internal corrosion in it (I will check later )

So in summary there were 2 faulty items

1 . The EGR

2. The THROTTLE BODY .

reading some info on the aftersales blurb

The butterfly is held open by the egr circuit for 60 seconds then control goes via ecu to hold it open

On mine as the throttle body rheostat was not talking it just shut off .
My thanks to all
I am just glad I thought twice (with input from forum members )about talking RAC mechanics (small "m") advice about injectors being faulty and needing new ones . £3grand later and still the same fault would not have been good

 

[jackwhoo]

op refers to replacement pierburg throttle, he means the throttle his van came to him was pierburg throttle.
he does not mean the new replacement throttle he bought was pierburg and it was faulty from new.
The op fitted a replacement new part brand QH