DPF Differential Pressure Sensor P2456

[Roby10]

Anyone knows how to do a proper calibration+force regeneration ?

 

I did some research on the web but i am not sure what’s the best way.

[jordy_wd]

The only way I'm aware of is using VCDS:

 

http://wiki.ross-tech.com/wiki/index.php/2.0L_CR_TDI#Exhaust_Gas_Differential_Pressure_Sensor_.28G450.29_Adaptation

[Roby10]

I’ve finished the repair work and did the recalibration using the above method for UDS. After a couple of minutes the car started a regeneration and everything went good.

 

Let’s if anything happens soon

[stever750]

Another failed dpf sensor here on a 2 Yr old diesel vrs octy. Dealer replacement was £120 and resolved fully. 

[Mattyoctavia]

Mine melted yesterday on me. 

I'll get the new sensor tomorrow and go from there. 

I had a loss of power the last 30-40 miles home. Did anyone else experience this? Hoping it will be OK with new sensor and regen? 

[Roby10]

Hi Matty,

 

The power loss is due to the senzor error. Should be ok after replacement. I recomend to recalibrate it before starting the car.

[Mattyoctavia]

Hi Roby, thankyou for your reply. 

I fitted the new sensor today, I used Odis diagnostic, it didn't give me an option anywhere to do basic settings. 

The car drives great again though, full power back and feels smoother. 

I checked the dpf Ash load whilst I was plugged in, 36 grams of Ash, allowed 80 so should see me through till around 250,000 miles 😁

Thanks for your help! X

 

[TheBeast_onu]

hi guys... i have a Golf 7 2.0 CRLB 150 cp.   213.345 km. 

 

After I changed the belt about 1 week look this happened.... DPF senzor is molten.. 

 

 

Does anyone know if DPF Filetr will have to be replaced ?? or i replaced only DPF Senzor  ???  Please 

[TheBeast_onu]

Hellow again Guys.

 

I changed sensors in the dealership and everything is ok !   Good thing it wasn't the DPF... 

 

[Maximator79]

Hello.

I have also had the same problem with the pressure sensors when changing the timing belt and the mechanic told me that he had not touched anything in the exhaust system. He tells me that the only electronic thing that he has touched so that the car can detect that the belt has been changed is the solenoid valve that is mounted on the cooling pump. In my case, an original pump was not mounted again and a Dolz brand was installed. I don't know if you know what brand of pump you mounted to be able to evaluate this failure. We could each put some data that can make us because this error appears.
Greetings

[Maximator79]

Hello again

Sorry about this type of writing bat I´m new and don´tknow how to change it.

[Deeje]

Hi

I've just had a cambelt change on my 2016 Superb 2.0 diesel SEL and the engine warning light came on. OBD11 showed P2456 code which led me to this thread, and lucky I did! DPS has just started to melt.

Will replace them both asap.

Thanks All

 

[Ivec]

Hi guys

 

Just wanted to share my experience with Exhaust Pressure Sensor on my Superb MK3. Recently poped out on my dash engine light. Went to local garage and free of charge was diagnosed with fault in 1 of my 2 sensors. As a regular customer (10 years) was offered replacement of both sensors with labour and overal price £300. Pretty shocking price. GSF Bosch £60 ish but today I decided to visit skoda service part shop. Brand new for £82 with discount. Garage said job should last no more 2 hours. So recap - to exchange the sensor took me 4 min!!!! No VCDS no diagnostic. Just took car for 5min driving still with light on my dash. Got cig and coffee for 15 min, returned back and no fault no light on my dash. Saved 220 and couple of hours without the car. Here is my spare part for others. Old one is B series new one D serie. 

Just wanted to share my experience. Cheers

[juri23]

Hello friend!

I would like to try replacemet G450 sensors for new and make adaptions, i try this tutorial:

UDS Protocol (G450) procedure

Key ON, Engine OFF
[Basic Settings]
Select Adaptation of diff. pressure sensor particulate filter
[Go!] to activate the Basic Setting.
After the result of Finished Correctly appears click [Stop]

Select Resetting of learned values of difference pressure sensor
[Go!] to activate the Basic Setting.
After the result of Finished Correctly appears click [Stop]
[Done, Go Back]

 

BUT i dont see in basic setting  Adaptation of diff. pressure sensor particulate filter and Resetting of learned values of difference pressure sensor.