General: V50/S40 DPF or FAP filter removal

[shark90]

A normal remap is £419, sorry I only gave the options for DPF removal as I thought you were considering a new DPF.

[dounroid]

Quick query with regard to the +0.35V. Is this between the +5V and sensor sig or between GND (0V) and sensor sig?

Thanks for any help.

[supafly]

I measured from ground to sig.
I was measuring at the strut earth point at first then decided to go from the sensors earth to ensure accuracy.

However, please note that my car has gone into limp mode. No messages on dash. Not sure if related or not, originally it wouldn't boost at all but would slowly rev up. Now it gives a little boost but only revs to a max of 2800rpm with the last 500 rpm having little or no boost. Will be getting the codes read tomorrow to find out what it may be.

I wonder if the ecu expects any variations in the sensor output...

[Bigmunkynutz]

Originally Posted by supafly

I measured from ground to sig.
I was measuring at the strut earth point at first then decided to go from the sensors earth to ensure accuracy.

However, please note that my car has gone into limp mode. No messages on dash. Not sure if related or not, originally it wouldn't boost at all but would slowly rev up. Now it gives a little boost but only revs to a max of 2800rpm with the last 500 rpm having little or no boost. Will be getting the codes read tomorrow to find out what it may be.

I wonder if the ecu expects any variations in the sensor output...

There will be variation in the output in normal circumstances as the.35v is an electrical current to reflect an normal dpf with no/low blockage and no requirement for regen, this will change when the dpf has some blockage requiring regen or replacement.

[Bigmunkynutz]

Originally Posted by shark90

Absolutely I agree, a car needs to be running properly before a remap, unless of course the remap will solve the problem that you're experencing (such as DPF faults or EGR faults).

We have a couple of options for the 1.6D 2.0D and D5:

Stage 0 DPF delete without a power increase: £449 including VAT (includes labour and ECU reprogramming)

Stage 1 DPF delete with power increase: £739 including VAT (includes labour and ECU reprogramming with power)

What alteration do you make to the physical dpf?

[shark90]

Originally Posted by Bigmunkynutz

What alteration do you make to the physical dpf?

We remove the DPF internals and re-weld the casing.

[dounroid]

Originally Posted by supafly

I measured from ground to sig.
I was measuring at the strut earth point at first then decided to go from the sensors earth to ensure accuracy.

I wonder if the ecu expects any variations in the sensor output...

Thanks for the information, I wanted to make sure the ECU has been tricked into thinking everythings ok before I "remove" the DPF. I used some bootlace terminals so I could insert those into the plug with the resistor so I could return everything to as-found state if I wasn't getting a good signal.

Now I've set the voltage to 0.35V between SIG and GND I'm in limp mode the whole time. Before I could start in limp mode and then once the engine had warmed up (say 5 minutes) I could turn the car off and then back on and it would start to function correctly. The other option was if the car started without going into limp mode then I could give it some revs for the first mile or so and it would stay ok.

I checked through my service history and I've a feeling that the Eolys oil has never been recharged. I bought the car at 3 Y/O with only 18K miles on the clock but the service history said the car had been serviced at a Suzuki garage. The service history said that the 36k miles / 3 year service had been done, but I bet it never filled that oil. Once I bought the car I did the next 2 services at the volvo dealership. They never did the Eolys oil as I've just looked at the invoices. At the last service I said I noticed a loss of MPG and they said there wasn't anything obvious. After I had the Engine Management Service Required message I took it back to the volvo dealership and they said that it required an engine control system re-map (cost £100). I had checked with my local mechanic and he has the code checker which said DPF sensor issue. The volvo dealership ignored the code and said it would go away with the re-map. I have to drive 100 miles to the volvo dealership so it's not exactly a trip I want to make all that often. So after they've not bothered to fill the eolys oil and ignored the warning messages I refuse to go back. I'm going to experiment a bit more with this potential divider. But at this stage I don't think it's the miracle cure the original poster is making out. If I was closer to a place that could remove the DPF and re-map I'd do it, but I'd have to drive for 100's miles to get that done...

I'll keep you upto-date with my experiments.

[shark90]

Originally Posted by dounroid

If I was closer to a place that could remove the DPF and re-map I'd do it, but I'd have to drive for 100's miles to get that done...

If you can get the DPF physically removed by a local garage, then we can sort out the mapping by lending you our softloader device.

[supafly]

Thanks for the update.

Mine has been to the dealer and we ran the diagnostics on the sensor output...

It was showing 0 (I don't remember the unit of measure but I think there was a h in it?)

So I've either: -

wired it incorrectly - although I managed 250 miles without any limp

connections have failed - will be checking connections tonight.

the output isn't what the ecu expects - not varying or too low?

Any input greatly appreciated. Or if anyone can check the output on a known well running engine I'm sure it would help.

The remap is the right option, although for me I can't afford that much at the moment.

[dounroid]

Found this:

http://www.freel2.com/gallery/albums...83/FL2_DPF.pdf

I don't think it's for volvo, but I reakon it'd be pretty similar.

I've set mine to 2.5V now, it's still starting in limp mode. I might reconnect the original plug and see what voltage I get.

Shark90, would you send me the DPF replacement section? I guess I fit that and then re-map using your tool?