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Engine fault light on after (nearly) running out of fuel

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Old Oct 20th, 2018, 21:00   #21
WilBo
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Ok, so the saga continues.

I changed the oil this morning, new filter, etc, so that the dpf doesn't just soot up again if it clears.

Tried to put it into regen mode using my mates snap-on diagnostic tool (which has the Volvo engine maintenance settings). It tried to start the regen but aborted with the following error message:

'conditions not correct or sequence error (0x22)'

The engine was at operating temperature and there was half a tank of diesel. I cleared the codes and tried it several times but no joy. I also tried going for a blast in 4th gear for 10 miles to try and burn at least some carbon off but that didn't seem to help.

So still in limp mode with the engine management light on. Still got the following codes:

2A30 Particulate filter blocked
2A40 particulate filter overloaded

I suspect that the latter one is stopping it from going into regen. A kind of 'get a new dpf you tight get!' type message.

Any ideas how else I can get the dpf hot enough to burn off the soot?

Also, someone said that they knew a few people that reported success using one of those fuel additives, but I can't remember the name.

Anyone know anyone who has had success with this?

I don't have Facebook so can't ask about Vida there and haven't had a post back in the Vida board on this forum. I think my mates snap on tool, should have worked though. So bit sure it would really help.

Cheers
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Old Oct 20th, 2018, 21:03   #22
WilBo
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Sorry. I meant, I think it is the 2A30 code that is blocking the regen.
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Old Oct 21st, 2018, 23:08   #23
WilBo
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Slight update.
I tried using an in tank DPF additive today to see if that helped any (Wynns - it is supposed to lower the temperature that the soot burns off and seems to have helped some people).

I went for a 30-40 mile drive to see if I could get the soot to burn off at all, but it doesn't seem to have helped.

Still can't get the DPF to regen.

I'm thinking the DPF is basically blocked and that my options are:

1) take the DPF trap off and flush it through with cleaner and a jet wash;
2) take the DPF trap off, check it (to make sure it does look blocked ) and order a new one off ebay (ca. 200);
3) take it to a Halfords service centre (they do a DPF deep clean for 85).

Anyone had any experience of any of these options?

I'm assuming that Halfords basically just spray inside the trap with cleaner with something like the Liqui-Moly or Wurth stuff and then flush it through, etc. But if it cleans it up enough to force a regen that might keep me going at least.

Any thoughts welcome.

Cheers,
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c30, diesel, dpf, dtc, engine management light


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