DPF, Where to look first

[monkeh]

Every day is a school day, today while talking with another XC owner with a d4 badge, and having a look under the bonnet. Same engine, no flaps. I looked everywhere. Appears that the "detuned" engines don't have them. Along with cheaper road tax too. So, scratch the flaps... (ooer missus)
Are you able to get live data on your scan tool?
With vida, I'd begin checking pressures and running a few tests, like turbo actuator travel, egr travel, injector checks. Along with actual readings of your sensors.
I know its difficult, but vida would really help here, because you could rule out things quite quickly.

[Bigblue74]

Originally Posted by monkeh

Every day is a school day, today while talking with another XC owner with a d4 badge, and having a look under the bonnet. Same engine, no flaps. I looked everywhere. Appears that the "detuned" engines don't have them. Along with cheaper road tax too. So, scratch the flaps... (ooer missus)
Are you able to get live data on your scan tool?
With vida, I'd begin checking pressures and running a few tests, like turbo actuator travel, egr travel, injector checks. Along with actual readings of your sensors.
I know its difficult, but vida would really help here, because you could rule out things quite quickly.

At least that’s one thing ruled out, yes my scanner will give me readings, knowing the values of the readings is another thing though lol, the only fault it keeps flagging is the exhaust temp sensor reading 1002 degrees even when cold.
Tbh in pure mechanical terms (old school) it feels like zero boost to me, I’ve got no boost leaks from what I found on the smoke test, I’m boost actuator would show as a fault code ??

[Clan]

Originally Posted by Bigblue74

Getting worried now because I’ve just looked and mine has just one 😳

i dont think the 2.4D lasted until 2010 , 2010 was the first year of the twin turbos . It could be a changeover car last of the 2009 perhaps?

[Bigblue74]

Originally Posted by Clan

i dont think the 2.4D lasted until 2010 , 2010 was the first year of the twin turbos . It could be a changeover car last of the 2009 perhaps?

Just looked into it, my car was registered 2/3/10 so I guess built in 09, it’s not 185 as I thought for whatever reason but it’s 175hp

[monkeh]

Originally Posted by Bigblue74

Just looked into it, my car was registered 2/3/10 so I guess built in 09, it’s not 185 as I thought for whatever reason but it’s 175hp

Definitely no flaps, yours is software detuned. You've got the desirable engine, I wish I'd bought that one!
If your tool can get turbo to open the actuator 0-100%, that may help. But the egt? I think you'll need that to function. Have you tried unplugging it to see if it goes bottom scale or totally topscale? It does look at egt during a regen, I'm not sure what it's function is in normal operation.
Getting the turbo actuator to open will prove that the vanes aren't all clogged up and are free to move, jamming the actuator, that's a possibility.

[Bigblue74]

Originally Posted by monkeh

Definitely no flaps, yours is software detuned. You've got the desirable engine, I wish I'd bought that one!
If your tool can get turbo to open the actuator 0-100%, that may help. But the egt? I think you'll need that to function. Have you tried unplugging it to see if it goes bottom scale or totally topscale? It does look at egt during a regen, I'm not sure what it's function is in normal operation.
Getting the turbo actuator to open will prove that the vanes aren't all clogged up and are free to move, jamming the actuator, that's a possibility.

I believe my scanner can do that so I’ll give it a go the weekend, memories of vw variable turbo and cleaning with mr muscle lol

[silverfoxjw]

Hi replaced the DPF Temp sensor on our XC60 for acceleration issues, very common fault, if it is not replaced, your issues will remain, look on the 09 section of the XC60 forum here, look at common fault list, hope this helps, good luck

[Bigblue74]

Originally Posted by silverfoxjw

Hi replaced the DPF Temp sensor on our XC60 for acceleration issues, very common fault, if it is not replaced, your issues will remain, look on the 09 section of the XC60 forum here, look at common fault list, hope this helps, good luck

Thanks, hopefully it’s a quick fix, I’ve got a week off next week so I can push on with it

[Bigblue74]

Okay so my new sensor arrived today and as I had a spare hour I figured I’d fit it .
All went very smoothly so I reset the fault code , but the second I started it the fault came back 😡, and still reading 1002 degrees .
Now my only thoughts are that the sensor that sits right next to it is faulty but after calling Volvo I was informed that this is nothing to do with the temperature and that my engine has only one “temperature “ sensors the others are for pressure etc
Just very confused that the fault and the temp reading are exactly the same on a new sensor, damn confusing.
On a plus note the turbo actuator seems to be working fine

[Clan]

Originally Posted by Bigblue74

Okay so my new sensor arrived today and as I had a spare hour I figured I’d fit it .
All went very smoothly so I reset the fault code , but the second I started it the fault came back 😡, and still reading 1002 degrees .
Now my only thoughts are that the sensor that sits right next to it is faulty but after calling Volvo I was informed that this is nothing to do with the temperature and that my engine has only one “temperature “ sensors the others are for pressure etc
Just very confused that the fault and the temp reading are exactly the same on a new sensor, damn confusing.
On a plus note the turbo actuator seems to be working fine

There are 2 temperature sensors for the particle filter one near the outlet of the particle filter under the car and one near the inlet from the manifold this one is next to the oxygen sensor , this is accessed down the back of the engine by the bulkhead ...
The one which is more likely to fail is the one near the outlet of the particle filter under the car . It regularly gets up to 600C when regenerating it should never read more than that.