2.0 tdci jumpy when moving off and revs surging when accelerating

[Karejoca]

Car is a 2012 s max which has developed a problem different to what i was attempting to fix.

Car had 2 leaking injectors - resulting in a real mess around injector head. i replaced seals and injectors - no more leaks which is great.

Had injectors re-programmed - car seems to idle fine - but splutters badly when moving off and then engine revs are surging a lot through the rev range.

Really struggling to diagnose.

Anyone experienced this problem before?

Thanks,

Ivan

 

 

[pragmatix]

How far have you driven, could be the ECU learning.

 

[Karejoca]

oh ive driven a good 50 miles or more since - im guessing it should have re-learned by now.

 

[pragmatix]

1 hour ago, Karejoca said:

oh ive driven a good 50 miles or more since - im guessing it should have re-learned by now.

 

Yes it should have, where all 4 injectors changed or just the 2

[Karejoca]

all 4 

 

[Tdci-Peter]

2 hours ago, Karejoca said:

Had injectors re-programmed

I would double check the injectors were correctly programmed. One thing to bear in mind is that the PSA engines (DV6 & DW10) have their cylinders numbered in the opposite direction to true Ford engines.

Ford have cylinder number 1 at the timing belt end, PSA have number 1 at the flywheel end. If calibration codes have to be entered into the ECU, this will matter.