Skoda Octavia II 2009/2010 Greenline TDI CR 1.6

 

 

Hi all.

 

I've suddenly had this error appear out of nowhere. The car is now limp: no boost, no power. And it won't regenerate dpf.

There no smoke. No smell. No other symptoms really, just Engine management light, flashing glowplug light, and loss of power.

 

The error code says soot accumulation but it wasn't long ago that I took a routine long drive to clear out the DPF.

Reading a lot online and watching YouTube videos, it appeared this problem should have been caused by the DPF pressure sensor failing due to age, and the solution would be to replace that and then regen the dpf all the way.

 

I've just installed a new DPF pressure sensor. Command given to relearn new values, and to run Active DPF regen  and I drove for 2-3 hours, a total of 120 miles, speed 40-70mpg and revs always over 2000rpm, up to 2700rpm, and the glowplug flashing light never went away. Now that I have turned the car off and back on, the error and engine management light came back like I did nothing.

 

Help. Any well informed ideas or actual experience. Please don't haphazard guesses because my mind is about to explode from all the other stuff I have to deal with.

 

[non-fault-related-rant] I have a lot going on and I'm tight on time and just wasted a whole day at the workshop who did not help, a pressure sensor and a lot of fuel, and I'm still at square one. I'm out of time as I've just had a car crash in my Fabia in the weekend, so I'm down to 1 car, and this one decided to fall apart at the same time (squeaking wheel, crunching other wheel, this DPF error thing, needs new oil already and also a new battery), I have work, my partner has work, and we've got 3 kids to take to and pick up from school. Insurance companies aren't responding and I don't know where to begin. I really didn't need this. [/non-error-related-rant]

I'm no expert on DPF technology but it is conceivable it has become too blocked to clear with regens, necessitating removal, specialist cleaning or replacement.

Sorry to hear you wasted a day trying to fix the issue.

 

You really need to get a diagnostic system plugged in like VCDS to measure 2 important values.  One is the amount of measured/calculated soot content, above 30g and the car will block active regens.  The other is the oil ash content value that is left over by the soot after it's burnt off.

 

So is there anyone near you with VCDS or similar that can read these values out?  If the values are ok, then you could use the software to do a static active regeneration and read the values of the soot whilst you are with the car.

 

What is the mileage on your car now?

@MicMacis right in saying that soot maybe too high for regens, so specialist cleaning might help.

Maybe too late now.

 

My rear wheel caliper f87cked up and I have too many problems to fix and no time.

 

I dropped it off at a garage in the morning and he suggested the best answer is to delete the sensors /remap.

 

Costly, but my other option was to scrap the car and buy another, for which I have zero days available.