[sandmaennle]

Thanks Phil!
I will ask if he changed the EGR already. You are right. I focused on the MAF.

Good point with changing more modules at once. But I'm not sure if I can add the PCM with my Mangoose clone. But it will be an interesting mix changing PCM, BCM, VIM and leaving the others with the old VIN i.e. BCMB.
But you are right, it's an idea to think about.

Cheers
Dirk

 

[sandmaennle]

Thanks Phil!
I got you right with the BCMs . I found already a not so uncommon issue with the broken spring at the EGR on youtube. So we collected already a few hints to proceed our Cat-walk .
Thanks!
And yes, it is really an option to take many of the donor control units. If they really fit. But according to the information Michael got, it should be the same model and year.

Cheers
Dirk

 

[sandmaennle]

I believe Michael didn´t perform an airpath setup routine. I didn't give him this hint so far. It's not so easy if the car is 600 km away and Michael just begins to learn about SDD and XF. He is excellent in restoring/refurbishing real Oldtimer Jaguars. The new stuff with control modules and the XF is New Wolrd stuff
And I'm not so familiar with the 2.2D.
But the information you gave so far, leads me to the decision not to buy a complete donor XF. I still believe the PCM/ECU + BCM is working right and the problem is linked to air, fuel or injectors.

Cheers
Dirk

 

[sandmaennle]

Thanks Phil!
I will have a call with Michael this week. Check what to do next. He is living in Germany but buys Jaguar parts and complete Jaguars in the UK. He is driving there one or two times a month.
The air path test routine will fail. It demands about 220 seconds idle But maybe the setup routine might work. I have done this on several 3.0D. It demands only a warm engine and ingnition on.

Yes, we suspected the injectors, too. But if it comes to this, he will have to wait till September. His mechanic with more knowledge about this will return from holidays then.

Cheers
Dirk

 

[sandmaennle]

That's why we suspected the HP pump and exchanged it. No joy so far.
We measured the desired and actual rail pressure. Desired pressure during idle is about 350 bar. Normal. Actual value will just cut off after 10 seconds. No DTCs so far. But I will try to get Michael to the point, clearing all old DTCs again, perform a air path setup and idle again. Maybe we find a miscommunication from BCM to ECU and the ECU shuts down the engine. But then I would expect a DTC.

Cheers
Dirk