JayGee wrote:

If the DPF has been gutted there would be no pressure differential across it and thus it would show zero g soot load. A new or clean DPF will flow more exhaust gas at a higher pressure differential than an old and partially ash filled one so again the point at which it needs to initiate a regeneration may be higher. Just drive and monitor it and only worry if you get warning lights.

Gutted DPF's will set a DTC due to lack of differential pressure, you either need to have the ECM software modified or introduce a downstream pressure drop within acceptable limits (2-5 Hpa is a good differential for a low DPF load). Ash load is calculated, not measured.

I’ve been chasing some error codes for a while and whilst checking some sensors, noticed the DPF remaining volume states 0 pints? What does this mean? Does it mean it’s full or is it empty? Do I need to do anything? I occasionally get a restricted performance error along with P050E, P041C and P040D codes with bank1 exhaust bank 212F/100C temps (failed??). Any thoughts??

Sorry, no idea why, but DPF remaining volume always reads 0.
100c is default (cold) value reading for exhaust temperatures sensors.
Mike. G reg 2.5VM Vogue Portofino red 1991- 1999
V reg 2.5td P38 Rioja red 1999- 2006
53 reg td6 Vogue Oslo blue 2006- 2015
11 reg 4.4 TdV8 Vogue SE. Baltic blue 2015- date.
https://www.fullfatrr.com/forum/topic56162...tty+affair

Thanks Baltic Blue….👍

Morning all,

My neighbour has just popped round (2015 Sport 3.0) as his DPF red has just come on. Am i right in thinking that I am OK to do a regen using the GAP? I just wanted to get some comfort as the GAP manual says the forced regen should only be used after a DPF replacement. Thanks all Dec 2021- 2010 Facelift TDV8 4.4 AB in Stornoway Grey.

After a DPF replacement not after a forced regen. Be careful as the car may have other issues causing the warning. Do a full fault code check to make sure there are no sensor faults and a visual inspection of the engine to check for leaks. Also make sure they haven't added any DPF cleaner to the fuel. 2012 TDV8 Vogue (L322)

Thanks for the reply. I’ll do all that first. I just wanted to confirm that I can do a forced regen without replacing the dpf which it seems is what others here have done. As it’s not my car I just want to be sure. Thanks again Dec 2021- 2010 Facelift TDV8 4.4 AB in Stornoway Grey.

Doing a forced regen to clear a red alarm is fine, but I didn’t know that was possible on a car that the iid is not Vin locked to ?
Hope it works OK.
Cheers
Mike. G reg 2.5VM Vogue Portofino red 1991- 1999
V reg 2.5td P38 Rioja red 1999- 2006
53 reg td6 Vogue Oslo blue 2006- 2015
11 reg 4.4 TdV8 Vogue SE. Baltic blue 2015- date.
https://www.fullfatrr.com/forum/topic56162...tty+affair

Thanks. I read the release notes and seeems you can do quite a few things on a 2nd car inc resetting the service interval. We’ll see but if necessary I’ll just get another licence


Thanks for confirming. Dec 2021- 2010 Facelift TDV8 4.4 AB in Stornoway Grey.

Hi all,

Sorry to drag up an old post but I’ve searched and can’t find any answers.

I left my car running while I jumped out to chat to a mate - only left it for a couple of mins and when I returned to it I had the amber DPF warning.

Having read up on here, I took it for a drive (about 25 mins), mainly over 40mph but hit roadworks a couple times. Eventually turning round and coming home, same journey back and the regen didn’t kick in.

I hooked up IID and went to the force regen mode… got the screen up and hit start. When I got to 25 mph it turned to starting regen but had to slow again at a couple of roundabouts until
I reached the dual carriageway. By this time it showed Regen Halted status. increasing my speed once on the dual carriageway, varying from 50 - 70 (ish) nothing moved off of the halted status.

I finally returned home having achieved nothing after an hour but the soot level now reads 26..!

Is there anything else I can try as I’m supposed to be taking a 200 mile drive tomorrow night (up the M11, A14, M6) but have heard once the soot level reaches 30 it can’t be fixed - just don’t want to break down on the journey.

Any ideas please ..?

Thanks Ash
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2016 SDV8 AB

Here is the protocol I would follow:

It sounds like you have a hose split and the soot produced is greater than the DPF clear. Keep your IID plugged in all the time (but don't leave it in overnight, it will drain the battery).

Quote:

Having read up on here, I took it for a drive (about 25 mins), mainly over 40mph but hit roadworks a couple times. Eventually turning round and coming home, same journey back and the regen didn’t kick in.

Thanks Range Rover

Super derailed and helpful suggestions - thank you sir..!

When I say the levels weren’t coming down… I checked the soot level after each run in IID so could confirm no regen process has kicked in.

Ironically however I had some free time so hooked up IID, not to force a then but to watch the stats. Ir seems I have a typical RR though. As soon as I left home, with the ‘dashboard’ of stats to watch and a soot level of 27.7 I reached about 30mph and noticed the 27.7 dropped to 27.5.

I joined the A12 and was diving at about 50mph watching the soot levels drop and the exhaust gas temps climb to over 600°. 13 miles later the soot level reading was 2.6…!

So a successful regen had occurred on that occasion. Ash
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2016 SDV8 AB

Cool! Sounds like you are sorted.
I forgot to mention to regen there are certain parameters which must be met - these include:

You must have over 1/4 tank of fuel.
You must be driving at over 37mph. (gently!, if you mash the throttle it stops).

When you go for your long trip, keep the IIDTool on and get a handle on it...
Also - it is not advisable to force a regen unless you absolutely need to. It is better to encourage the car to sort itself out by giving it the right conditions.
This will also help make issues more recognisable.

Good luck!

Matt 2012 L322 4.4 TDV8 AB low mileage - a peach
1986 V8 Defender 90 County ex-Swiss Army - Red everything....

My preferred Independent: Roy Hardy. R & B AUTOS LTD, 20 Brook Road, Wimborne, Dorset, BH21 2BH 07500 866775‬ (Ex LR Chief Technician)