DPF Noob P2454 P2453

[manic222]

Hi Guys. I've got the classic MIL/ glow plug light and DPF filter light occasional coming on my 59 VW TDI Bluemotion CAY 012 888. What worries me is that I do a lot of motorway driving. The first MIL came on just after I did a 250 mile motor way journey. I performed a natural re-gen by driving it for a further 20min at 2500rpm which cleared the lights however the glow plug light has come on intermittently since. I did a quick scan and I got the following error codes:

P2454 - DPF differential pressure sensor circuit low.
P2453 - DPF differential pressure sensor circuit range/performance
(although I cant read the ash or soot levels due to my basic OBDII reader)

I've just put some Wynns DPF cleaner (http://www.amazon.co.uk/-/dp/B009VWJ22A) in my tank although I don't hold out much hope for that. What do you think my next step is? I want to try and sort the problem myself rather than taking it to the garaged (trying to take the torch from my Dad who has always fixed my cars but is now unfortunately unable to do so :( )

Should I perform a chemical clean on the DPF - if so what would you recommend?
Should I take out the DPF and pressure wash it? - how hard is it to take the DPF out of this car?
Or should I get a new pressure sensor. If so how could I calibrate it.

Sorry for the multitude of questions,
I'd appreciate if someone could point me in the right direction.
Also I've read the sticky notes on the DPF (great post)

Thanks,
Manic222

[itavaltalainen]

I would look at the electronic side of things with those fault codes not the DPF itself:

18885/P2453/009299 - Ross-Tech Wiki (http://wiki.ross-tech.com/wiki/index.php/18885/P2453/009299)

[Crasher]

Tiny point, the car is a Golf 6. The DPF is not necessarily blocked, firstly a new presume sensor should be fitted and calibrated and then the soot and ash levels of the DPF can be checked at the same time.

[manic222]

I would look at the electronic side of things with those fault codes not the DPF itself:

18885/P2453/009299 - Ross-Tech Wiki (http://wiki.ross-tech.com/wiki/index.php/18885/P2453/009299)


Tiny point, the car is a Golf 6. The DPF is not necessarily blocked, firstly a new presume sensor should be fitted and calibrated and then the soot and ash levels of the DPF can be checked at the same time.

Thanks a lot gents - I'll give that sensor a good hard looking at.

Sorry to sound like a buffoon but if it is the sensor, what would happen if I didn't calibrate it (as I don't yet have the means or knowledge too.) Could I just install a new Exhaust Pressure Sensor 1 (G450) and not calibrate it?

Thanks manic 222

[Crasher]

I don't know what will happen if it is not calibrated, I have not be drunk enough to try it. The "car may burn down" warning about blocked DPF's can make you think twice, I hate barbecues at the best of times...

[manic222]

Haha, fair enough. I don't suppose anyone can point me to youtube video of how to calibrate the said sensor?

[Crasher]

If you have full VCDS, it should be in the security access menu and if it is like the A6 I did this morning, the login is 12233 and then you go to basic settings and again, hopefully the menu has the sesnor calibration in the drop down list so you wait whilst it does that and then a bit further down you can delete the learnt values so the ECU will use the new sensor to calculate the soot loading.

[manic222]

Thanks Crasher :beerchug:, would this work on VCDS 12.12.0? or does it have to be the new 14.10 release?


Also I've heard whispers that if you disconnect the battery and then install the new sensor, upon reconnecting the battery the car will do an auto-calibration on all sensors. Does anyone know if this is true or pure rumor?

[itavaltalainen]

Should work on v12.12 but why not update to 14.10 as it's a free download.

[Crasher]

Also I've heard whispers that if you disconnect the battery and then install the new sensor, upon reconnecting the battery the car will do an auto-calibration on all sensors. Does anyone know if this is true or pure rumor?

Can't see how that would be have any effect.

[Keithuk]

The newest is Release 14.10.2 (http://www.ross-tech.com/vcds/download/current.php) which came out in March. You could always try the new Beta 15.6.1 (http://www.ross-tech.com/vcds/download/beta/current.php) which came out last month. If you have a genuine VCDS cable the join the Ross-Tech Forum (http://forums.ross-tech.com) after you have registered the VCDS Dongle Registration (http://www.ross-tech.com/vca/hex-com-reg.php).

[manic222]

Thanks again,

I'm going to see if I can buy a second hand VCDS dongle. Don't think I'll be able to afford a new sensor and a new VCDS dongle :(

[itavaltalainen]

Have a look at VCDS user map - https://www.google.com/maps/d/viewer?mid=zwQHurSsCMz8.kMTwqF0PoXwc
There might be someone near you who can do it for you for a beer token. :)

[manic222]

Have a look at VCDS user map - https://www.google.com/maps/d/viewer?mid=zwQHurSsCMz8.kMTwqF0PoXwc
There might be someone near you who can do it for you for a beer token. :)

That's a handy map. I think I've got to bite the bullet tho and start the steep learning curve of VCDS

[itavaltalainen]

Go for the genuine item then, not the cheap chinese knock offs ("VCDS 12.12" on Ebay).
That also means you get support from Ross-tech and you actually support their work - they are a small family owned business, not a sleezy chinese copy cat (not that I have anything against Chinese otherwise).

[manic222]

Couldn't agree with you more. Ross-tech are amazing!

[manic222]

Well, i give up trying to find a second hand, genuine Ross-Tech dongal. I'll have to save up and buy the real thing. In the mean time, does anyone know the VW part number for this pressure sensor so that I can get quotes for that as well.
Thanks in advance.

[Crasher]

I get the sensor as being 076 906 051 B @ £65.42 genuine, £35.92 from Euro Car Parts under their number 725440020. Check that this number is correct as I don't have your cars VIN.

[manic222]

I just checked my car and it appears to have this code on it: 059 906 051 C. How does one translate that into a Eurocar parts number? And would you recommend getting the genuine sensor over a Eurocar parts sensor, or does not really matter?

Thanks again Crasher

[Crasher]

059 906 051 C is for a Golf 6 with a CFFA, CFFB or CFGB engine, a Golf 6 with a CBDC, CBAB or CBAA should have 076 906 051 A so either your engine code that you posted is wrong or your car has the wrong sensor but check with your local TPS/dealer using your VIN to see one which your car should have.

[Keithuk]

You can search for part numbers on VOLKSWAGEN GOLF/VARIANT/4MOTION [GOLF] (EUROPE) 2009 [Golf 1K-9-400 001 >>]: ELECTRICS: 90615. PRESSURE DIFFERENCE SENDER; EXHAUST GAS TEMPERATURE SENDER (http://www.partsbase.org/vw/golf-variant-4motion-golf-eu-2009-golf-1k-9-400-001-90615-pressure-difference-sender-exhaust-gas-temperature-sender/#p-vw-059906051c)

[manic222]

That is a great website, thanks Keithuk! Looks like Crasher was right, I need the 076 906 051 B sensor. Not sure why I've got the wrong one in the car now (second hand so what do you expect). Hopefully I'll get the new sensor tomorrow, then I can re-calibrate the sensor (my friend has VCDS - almost fell off my chair when I found out.)

[manic222]

If you have full VCDS, it should be in the security access menu and if it is like the A6 I did this morning, the login is 12233 and then you go to basic settings and again, hopefully the menu has the sesnor calibration in the drop down list so you wait whilst it does that and then a bit further down you can delete the learnt values so the ECU will use the new sensor to calculate the soot loading.

So i've attached the new sensor. Plugged up my friends VCDS, inserted the security code 27971, but there is no sensor calibration or 'Resetting of learned values of difference pressure sensor' in the basic menu.

I do have:
resetting learned values of average quantity adaptation.
erase static memory
Adaption of diff. Pressure sensor particulate filter

not really sure what to to. Being a noob I don't want to start playing around with thing I'm not sure of. Any suggestions?

[Crasher]

You need to do the adaption of the differential pressure sensor for the particulate filter but firstly you will need to enter the login code from the menu which should appear in the security access screen.

[manic222]

You need to do the adaption of the differential pressure sensor for the particulate filter but firstly you will need to enter the login code from the menu which should appear in the security access screen.


So I just did the : Adaption of diff. Pressure sensor particulate filter. And it said finished / done....is that it? Is that all I have to do?

[Crasher]

Yep.......

[manic222]

Wow, can't believe it was that simple. I guess there's nothing left to do but thank you guys for all your help and wait for the MIL light to not come back on (fingers crossed.)