Hi 

 

I am a brand new guy here. I have a Skoda Octavia 2.0 TDI - 2013 MK III. (ea288/CKFC) 200K km

I came home from a 2000km tour when my check engine came on with limp mode after active driving through main road with lot of overtakes. (80-110KM/H)

Fault code was P2456. I went to a DPF cleaner service where they cleaned my DPF and changed melted exhaust sensor. They were very strange: they forget to attach back my secondary electric water pump and they couldn't clear fault codes for example (fixed by an other car service guy). After cleaning my DPF filtration increased from 350m3/h to 460m3/h and they bosh tester calculated 6g remaining soot in the filter.

The car was pretty good i felt it was going better. After 600km later i felt limp mode without check engine. For example my car stopped working well on small hills. (with 130km/h cruise control my speed fell down to 120-125 km/h). I feel very bad performance when i climb hills. I don't dare overtake. After reading the fault codes i got Pending fault with P2456. (DPF) Sometimes it disappears but after i go out to highway with warm engine came back and no power over 100km/h.  (I have a simple BT ODBII reader with torque app)

 

This is normal after DPF cleaning service?

May the new sensor not be calibrated after change? 

Any idea?

 

Thanks

 

 

consumption did not increase
no cooling water or oil loss
there are no exhaust leaks in the engine compartment
exhaust pipe metal clean, does not smoke

I would get it scanned with VCDS or a dealer style tool etc as it may give more information.

There is a before and after sensor on a DPF, so if either are faulty or not well sealed then there will be problems.

 

I'd be tempted to get a garage to take the car out and log the DPF values from the sensors over a drive cold and in the conditions that set your problem off.

Even if it's £100 at a main dealer, it's a lot cheaper than playing swap the parts at random until it's fixed.