S80: Engine New DPF question

[zaakk]

Hi all.

Have just fitted a new DPF to my 2011 S80 1.6 D4164T, but am getting ECU codes relating to it, such as Regen Duration and Soot build up. A couple of times when driving the engine has cut out and proved difficult to start. There was a low fuel pressure issue but replacing the sensor seems to have cured this, VIDA not showing any issues anyway. Car also in 'limp' mode (3000rpm), but no dash warnings on this.

Still learning about the car and as such was unaware of the DPF dosing tank until recently, got some fluid arriving today. I have reset the DPF counter in VIDA but not the dosing tank as yet.

My question is, are the issues in all likelihood down to the dosing tank or should I be looking at another rabbit hole?

Many thanks.

[Moomoo]

Fuel filter issue gave me similar problems. Try a new filter.

[zaakk]

Originally Posted by Moomoo

Fuel filter issue gave me similar problems. Try a new filter.

Sorry, forgot to add, also chnged fuel filter to genuine volvo, thanks though

[Simmy]

did you reset and tell the ecm a new dpf has been fitted?

[zaakk]

Originally Posted by Simmy

did you reset and tell the ecm a new dpf has been fitted?

Indeed I did. I'm going to top up Eolys tank and go through the process again, maybe ending with a forced regen, unless the consensus is this would do more harm than good.

[Simmy]

you could try some cleaning fluid before the re gen to dissolve some of the soot

[37 RUBY]

Hello

Was the replacement DPF OE or copy? It's not unheard of for copies to have pressure readings out of range from new.

What reading are you getting at the DPF pressure switch?
You are looking for less than 10mbar at idle and not raising much higher than 50mbar at 3k rpm.
As well as registering the new dpf was the soot counter zero'd too?

Also an empty dosing tank will trigger limp mode, so a refill of tank & reset of dosing counter plus manually activating the dosing pump to ensure it is running would be worthwhile.

Forced regens are something to avoid. High temps crack DPF's which can be recognised by low pressure readings at raised rpm.

What other DTC codes are logged and return even if cleared?

[zaakk]

Originally Posted by 37 RUBY

Hello

Was the replacement DPF OE or copy? It's not unheard of for copies to have pressure readings out of range from new.

What reading are you getting at the DPF pressure switch?
You are looking for less than 10mbar at idle and not raising much higher than 50mbar at 3k rpm.
As well as registering the new dpf was the soot counter zero'd too?

Also an empty dosing tank will trigger limp mode, so a refill of tank & reset of dosing counter plus manually activating the dosing pump to ensure it is running would be worthwhile.

Forced regens are something to avoid. High temps crack DPF's which can be recognised by low pressure readings at raised rpm.

What other DTC codes are logged and return even if cleared?

That's an awesome list of things for me to look at, thanks. Work has been busy so havent had a chance to revisit, aside from the DPF is a copy. I have re-registered the DPF and limp mode seems to have gone for now. Will be having a look again tomorrow.

Thanks again.

[Clan]

Originally Posted by zaakk

That's an awesome list of things for me to look at, thanks. Work has been busy so havent had a chance to revisit, aside from the DPF is a copy. I have re-registered the DPF and limp mode seems to have gone for now. Will be having a look again tomorrow.

Thanks again.

Also ensure the engine has the latest software , most have been neglected now and won't.

[37 RUBY]

Originally Posted by Clan

Also ensure the engine has the latest software , most have been neglected now and won't.

Hello Clan

The benefits of main dealer or specialist servicing.

I no longer have a Volvo or Vida so cannot check - Is there anywhere on Vida where the man in the street can check what software is loaded to the relevant modules and if so whether or not its up to date?