Really stuck with this now ! Help

[Mcallanm17]

So I have a Mk7 2012 2.2 dcti and the problem is that when you Rev it up past 2000 revs it becomes very lumpy and the TCL comes on and also the powertain light, (yellow cog) done a leek off test and sent the injectors off to be looked at which resulted in one being replaced as was faulty, put the injectors back in and I still have the same problem. The engine idles fine but is useless under load. Going by the stats on the computer there is plenty fuel pressure in the rail.

Also noted that only when the power train lights comes on there is loads of white smoke and stinks of Diesel like is over fueling. Just spend £250 the get the injectors looked at and a don’t know what to do next so any help would be Appreciated

[Airthies]

Is it Denso or Siemens injectors it's got?

[Mcallanm17]

They are Denso

[Airthies]

Did the injectors go back in the same holes?
There are individually coded to the cylinders and mixing them throws out the values the PCM holds for them. Also new one needs coding in anyway and the pump n pilot learns process etc need to be done so the PCM knows how to trim each injector.

[bambi mk 1]

I presume you changed the fuel filter,did you use a Ford one

[Airthies]

Also need to check calibration file is latest version for van

[Airthies]

I presume you changed the fuel filter,did you use a Ford one

Yea +1 ^^^^
do the simple thing first.....

[Mcallanm17]

Now that I am looking at Siemens injectors I think that’s what I have will double check tomrrow,
I marked them all and all went in the same holes. Ok a will try and get the new one coded and hopefully that solves it

And to be perfectly honest I haven’t changed the fuel filter yet

[knobby1]

Now that I am looking at Siemens injectors I think that’s what I have will double check tomrrow,
I marked them all and all went in the same holes. Ok a will try and get the new one coded and hopefully that solves it

And to be perfectly honest I haven’t changed the fuel filter yet

If they're Siemens, it'll be a Euro-V machine....they're a bit different to the normal Mk7 denso powered setup.

Lord Knobrot

[Punto443]

Could this be a dpf issue, over fueling when trying to regen?

[Mcallanm17]

Is it Denso or Siemens injectors it's got?

Cheacked this morning and they are Siemens injectors

[Mcallanm17]

Could this be a dpf issue, over fueling when trying to regen?

That is exsactly what it sounds like would I be best tryin to do a forced regen ?

[Punto443]

Check the wiring to dpf, they are quite common for failure

[Mcallanm17]

Would there be a sensor that tells the Ecu that the DPF is blocked when it’s not ? Wiring looks ok

[Airthies]

Is it Denso or Siemens injectors it's got?

Cheacked this morning and they are Siemens injectors

Forget about coding them in then