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RN Aircraft Engineer
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Discussion Starter #1
Hello guys, I'm new here so apologies if this situation has arisen before but I haven't seen so from a search! :(

So I'm the proud owner of a 2011 Insignia 2.0 CDTi SRi VX-Line Red Edition. I've owned it for two years without any issue. Recently my baby was suffering from minor intermittent power loss. This quickly became permanent power loss and upon inspection found a split boost pipe. Because the power loss was so slight to begin with (tiny hole, obviously) I didn't think much of it. Once I found it, removed it and replaced it I removed and cleaned the EGR valve and pipe due the carbon build up.

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As you can see it was god awful. This prompted me to get a full professional carbon clean of the engine carried out; assuming I'd be able to run the car for a long drive afterwards to regen the DPF and generally blow the rest of the s*** out.

So now were up to today. The car has just been MOT'd, insured and taxed (has been SORN due to deployment) and I was leaving my house to take it for a test drive and regen the DPF only to find that I have no power whatsoever past ~2000 revs.

I have revved whilst stationary and the hoses in the system pressurise. It will only rev up to 3500 (3000 with the MAF disconnected). I took the hose from the air filter - turbo off and the turbo moves freely, but there is a little oil within the hose. I should say at this point that the only dashboard issue that presents itself is the SVS warning. It is due a service and will be booking one in once drivable but the warning did only start once the pipe split became much more noticable. The guy who did the carbon clean picked up two fault codes with the DPF although didn't specify what the codes were, just that there were two.

My assuption is that the DPF is blocked which is caused maybe a DPF pressure fault and DPF temperature fault; but there is still no warnings on the dashboard. I haven't tried to take the car on a longer drive to regen incase that is the case and I write off my turbo through back pressure blowing the seals! ...That is if they havent already started to go with the small quantity of oil in the hose.

Any suggestions/ideas as to the problem and solutions? I know this is a very long post but I feel the more detail the better!!

Thank you in advance fellow Vauxhall-ers!

Luke (y)
 

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Premium Member
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14,142 Posts
The SVS warning in the display means there is a fault logged that needs sorting, you could use Opcom to read and clear the faults which may bring it out of limp mode but if its dpf related you may need to do a static regen, reading the fault codes first is the best way forward.
 

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RN Aircraft Engineer
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Discussion Starter #3
Thanks for the quick reply andy!

I've heard a few people say similar. However I've also been lead to believe that the SVS light is on a mileage/time preset. Having looked online for a cheap but decent code reader, it seems they all only read codes relating to the orange EML. To buy a reader that is capable of reading faults with ALL systems, the cheapest I've seen is £450 from Halfrauds. I will have a look at this opcom though.

On the subject of regeneration, how would I go about doing a static regen? And if the DPF was blocked to the point of causing back pressure, would even attempting a regen be a smart idea? With regard to completely blocked DPF's and carrying out a static regen, I've heard horror stories of them catching fire or melting with the additional heat and lack of cooling air passing through and around that area of the engine.

Luke (y)
 

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You could PM @Koicarpkeeper on here, he can supply you with a HQ Opcom which will read all the systems on your, it can also read and clear fault codes, read live data so you could look at the dpf saturation level etc,.

Doing a static regen may not be whats needed..the SVS light is there to tell you the car has a fault logged not that it needs a service, if your car needs a service you will get a different warning...

The faults logged may relate to the boost fault you had in which case will need to be cleared before the light will go out and power restored, if you find dpf faults along with the boost faults then clear them down and take the car for a drive, it may do a regen once its out of limp mode but if it drops into limp on the drive then you may need to do a static regen (which you can do with a HQ Opcom) then take it for a drive to allow the car to complete a dynamic regen.
 

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Unfortunately Vauxhall didn't really use the best terminology when naming that light SVS, it really does throw a lot if owners a curved ball as a result.
 
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RN Aircraft Engineer
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Discussion Starter #6
Okay, will give him a shout! Sounds like exactly what I need. I was going to take it to garage for diagnostics today to find out the saturation level and get the codes read and cleared but I live in area that seems to just shut down on weekends. :unsure:

Right on. My apologies, I assumed that SVS (Service Vehicle Soon) caption would mean exactly that and nothing more hence believing it was merely a time/mileage preset alert.

So from the information I've provided, are you swinging more toward the DPF being the problem as opposed to primarily a turbo fault/leak/boost issue? - Of course, this could all change dependant on what codes come back and will keep you updated!
 

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RN Aircraft Engineer
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Discussion Starter #7
Unfortunately Vauxhall didn't really use the best terminology when naming that light SVS, it really does throw a lot if owners a curved ball as a result.
I'm glad you could both clarify! Many thanks. That would most certainly explain the coincidental timing of the caption appearing. :ROFLMAO:
 

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Zixty,
Just out of interest what mileage has your motor now covered?
You may want to go the self diagnostic and repair route. I could recommend a good diesel indy specialist up north.
 

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RN Aircraft Engineer
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Discussion Starter #9
Zixty,
Just out of interest what mileage has your motor now covered?
You may want to go the self diagnostic and repair route. I could recommend a good diesel indy specialist up north.
It's just over 60k, still below average! ~30k of that is all me as well, purchased from a main dealer with FDSH. Let me stop you there though. I'm the complete opposite end of the country, bottom of Cornwall!
 
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