Injector correction limits. Doblo 1.9 multijet

[Poperon]

Hi,

I've got an ongoing problem with my 2006 Doblo 1.9 multijet, it's a fault code P1206.

To cut a long story short, I found a Fiat service sheet about this problem ( https://manualzz.com/doc/6412115/operation) and on the list was injectors.

This is what it says:
Injector correction. Check single injector is comprised between -2 and +2 mm3/injet with the engine idling and warm.

Well, I've checked this out with MES and all injectors are within -2 and +2 (max at about +1.5 and -1.5).

On a run I graphed the correction of each injector. Cylinder 2 & 3 were always within the +2 -2 but cylinders 1 and 4 peaked at around +4 -4.

Is this normal?

Any ideas much appreciated.

Cheers

Ron

 

[Poperon]

Hi,

There's lots on the internet about injectors but not much about these correction values.

Can any of you knowledgeable folk help me out on this one?

Cheers

Ron