Starting issue when engine is hot/Heat Soak

[colinthecamper66]

Hi All,

Our new engine in our 2.0l is running beauifully smooth when starting from cold and when running. However when on long journeys and when we stop after a few minutes like a petrol station stop, the van will struggle to start, very knocky and lumpy. Once it does fire up, its lovely and smooth instantly. What could be causing this. The new engine also had new injectors. What could I look into to help diagnose the issue, to me is seems fuel related but I am happy to be wrong and pointd in other directions to diagnose.

Any help much appreciated.

Gary

[metalworker0]

Year, model, petrol / diesel required for answer

all the best .. mark

[colinthecamper66]

66 plate, transit mk8, 2.0l ecoblue diesel

[metalworker0]

Other than checking if the fans are coming on , and the temperature gauge before you stop

You need diagnostic scanner .. preferably Forscan

There may be a log of fault codes of what could be causing this .

Forscan is FREE software .. you down load to a laptop from here

https://forum.forscan.org/

in order to hook it up to the van , You just need to buy the cable called "Vlinker" £25 or so .

Note: there are a lot of posts here with the same problem and no resolve, trouble is ,people don't come back and tell us what they did to resolve it .

if no codes, you will be looking at the EGR valve with forscan as a possible cause, this should have been serviced if it had a new engine though.

all the best.mark

[colinthecamper66]

Thank you, I have a forscan using, just wondering exactly what live data I could look at to help identify the issue. The EGR, is deleted, could this be the issue you think? It is not blanked, just deleted.

Thanks

[metalworker0]

IF the EGR is deleted, then i cant help you .. some deletes can totally confuse the system .. and lead you into bigger problems

all My answers are for an EGR that is not deleted .. as i don't know what or how its been disabled, so i have no idea !


Normal not deleted EGR :

To monitor EGR with forscan

You need EGR Commanded and EGR Actual.... in percent pids

written as abbreviations in Forscan As

ACT AND CMD

typically like so:

download/file.php?id=57029&mode=view
although there are variations

Note: the one in the picture above is showing the EGR as faulty
as actual must follow commanded in live data as you drive .


If EGR actual is not following commanded .. either stuck or sticking flap or something faulty or bust ..
The EGR is a bit different in the ecoblue, has a vacuum doofer strapped to its side .. and im not familiar with all its functions, as it does not look like EGRs from transit 2.2s ... which when you look at them are self explanatory .. nobody is showing pics of ecoblue EGR internals, which leads me to say that.

and the cure could need; as little as a strip and clean to restore function .. or replacing.

Stripping and cleaning EGRs is a service item .. and depending on how driven .. for instance lots of stopping and starting , idling, short trips . if so, you may need a full strip down and clean every 20,000 miles .

all the best.mark