DPF filter issues

[travvv]

IV read on some many articles of people having issues with blocked DPF filter, after diy replacement unable to reset engine warning light or reset limp mode.
Well I have the answer!!!
I myself delt with this issue and went to many mechanics who kept telling me the replacement filter is blocked and were not able to force regeneration.
Ok let me break it down, so you DPF filter is blocked and mechanics do a forced regeneration, the engine light comes back on mechanic does regen again after a couple of times the ecu will not allow it again so you replace DPF filter but it's still registering it's blocked the reason is the ecu memory has stored the last reading saying the soot level is to high, you have to do more than just clear the code. With a diagnostic tool you have to tell the ecu that U have replaced the DPF filter them reset the values then clear the codes. And off you go with a healthy exhaust system.

 

[privateTDIjet]

Not so healthy if it’s actually full of ash. It’s a good temporary solution though. Not to mention that sometimes the DPF is outright cracked so a regen doesn’t matter because soot will just slip past it.

 

[travvv]

Yes of course that's why it's a good idea to remove it and either blow it out with high pressure water or replace it with a low km used replacement or new one. I recently had do so this job on my van in the end I replaced the CAT and the DPF then had to go through the steps I mentioned earlier. But overall I saved allot of money. It cost $650 for a replacement low km DPF and $350 for a replacement low km CAT. Both parts were easy to remove and replace.

 

[travvv]

Also knowing what caused the blockage will stop it from happening again. Which turned out to be the way I drove the van with lots of stop start short trips, I didn't allow the ECU to preform a regeneration then to make it worse I sprayed a can of Diesel EGR cleaner down the intake and directly into the DPF filter and this just messed with the sensors readings and created higher levels of carbon monoxide and a sludge like blockage. Once I replaced the two parts I instantly could feel the van wasn't choking. Lesson learned. Don't spray liquids down your intake or if you want to only small amounts. But I'd recommend removing EGR and cleaning it properly.

 

[travvv]

But the point of this tread is to say if you preform more than a few forced regenerations consecutively your ecu will block you from preforming any more and you'll have a permanent DPF error code even if you replace the DPF you will still have the permanent error code because ecu has stored the last high soot readings. The only way to remove this error is with a capable diagnostic computer by in the menu using option - DPF settings - Tell ECU DPF has been replaced, then option - Reset values. That way the ecu start new checks.
This is the problem everyone has, trying to clear the error code. That's how you clear it.

 

[travvv]

Allot of mechanics don't know this and think they just need to do a forced regeneration and clear the code. Then don't understand why they can't do any more regens or clear the code. Even after replacing the DPF some still don't understand why they can't clear the code. Well you know how to show them.

 

[travvv]

Long story - short, if you preform a diy DPF clean or replacement or even have a small mechanic without enough modern diesel engines experience or equipment do the replacement you will not be able to clear the code. This can only be done with a capable diagnostic computer by running the correct DPF replacement procedure as explained.

 

[travvv]

ProStreet automotive and fabrication in Newcastle has a capable diagnostic computer and should charge somewhere between $50 to $100 for the correct DPF reset procedure.

 

[brakey]

I have a MK6 CJAA TDI in a 2014 Jetta Sportwagen.

On our return trip from Florida to Michigan the bank 1 sensor 1 EGT failed in Georgia. It was a replacement from Amazon so I don't recommend using these Chinese parts from them. It only lasted about 1500 miles. Replaced it with I.D. parts sensor.

When we hit Ohio the check engine light came on that the exhaust was restricted. I ran the codes on my Autel Pro scanner. I can ad them later as I am not in my shop.

Assuming the DPF is blocked I purchased the liquid Moly cleaner and purge. I have a tool that I can used to spray the DPF with ~ 100psi using this gun.
I am concerned that since the exhaust manifold sits lower than the DPF Inlet and Turbo that the cleaner can run back into the engine and create a bigger issue.

Is there any reason for concern?
Have any of you used this Liquid Moly Cleaner and Purge in a CJAA DPF?

Thanks is advance

 

[oilhammer]

I've never seen a CJAA have a "blocked" DPF.

I see them cracked.... almost one a week. But never seen one blocked.

 

[brakey]

I just ran the codes
09315 soot accumulation
01348 EGT cir 1 bank 1 replaced with new I.D. part
01136 pressure sensor 1 partially dissassembled

The O2 sensor is detached so I got a 00309 which I assume is because its detached

The car is sitting on the hoist with the O2 sensor out and the EGT replaced.
I have the 02 removed because I had plans to run Liquid Moly cleaner and purge through from the sensor hole.

How have you been able to see a cracked DPF after it was removed??
I checked with a inspection scope through the sensor hole but couldn't see much.

 

[oilhammer]

Read here:

CBEA/CJAA DPF info | TDIClub Forums

 

[brakey]

I will answer my previous question about using liquid moly cleaner.
I sprayed the cleaner and purge with a fine mist sprayer into the DPF.
Result was a partially hydro locked engine.
Don't use Liquid Moly on a MK6 CJAA DPF!

 

[Iowa TDI]

I have a MK6 CJAA TDI in a 2014 Jetta Sportwagen.

On our return trip from Florida to Michigan the bank 1 sensor 1 EGT failed in Georgia. It was a replacement from Amazon so I don't recommend using these Chinese parts from them. It only lasted about 1500 miles. Replaced it with I.D. parts sensor.

When we hit Ohio the check engine light came on that the exhaust was restricted. I ran the codes on my Autel Pro scanner. I can ad them later as I am not in my shop.

Assuming the DPF is blocked I purchased the liquid Moly cleaner and purge. I have a tool that I can used to spray the DPF with ~ 100psi using this gun.
I am concerned that since the exhaust manifold sits lower than the DPF Inlet and Turbo that the cleaner can run back into the engine and create a bigger issue.

Is there any reason for concern?
Have any of you used this Liquid Moly Cleaner and Purge in a CJAA DPF?

Thanks is advance

Just a heads up...I bought a brake pressure switch from ID Parts advertised as an oem original part it was not. Very disappointing.

 

[privateTDIjet]

I will answer my previous question about using liquid moly cleaner.
I sprayed the cleaner and purge with a fine mist sprayer into the DPF.
Result was a partially hydro locked engine.
Don't use Liquid Moly on a MK6 CJAA DPF!

Sounds like it’s time for a delete

 

[pedroYUL]

Partial hydro lock sounds horrible. Hopefully you stopped before cranking too much.

 

[brakey]

It was a partial hydro lock.

I managed to ease the starter and after a few minutes on a charger I managed to push out the fluid.
Seems to run fine but still in limp in and the glow plug is still flashing with no code.

I believe the glow plug flashing was a result of a failed Amazon EGT sensor 1 bank 1 replaced with a VAG part.
The code is now erased but the glow plug light is still flashing.

I have restricted DPF which I tried cleaning with Liquid Moly. That code appears to be a permanent one and I have had no luck removing it with OBDeleven or Autel MD806 Pro.

 

[TurboABA]

I've never seen a CJAA have a "blocked" DPF.

Look up my post from about a decade ago when I dealt with it on my '10 Jetta

ProStreet automotive and fabrication in Newcastle has a capable diagnostic computer and should charge somewhere between $50 to $100 for the correct DPF reset procedure.

You can do it yourself with VCDS if you know what you're doing.... for FREE

 

[TurboABA]

Ok let me break it down, so you DPF filter is blocked and mechanics do a forced regeneration

Let me break it down for you....
IF the filter is "blocked", it's filled beyond the 45g level, and the mechanics cannot force a regen because the controller won't allow it.

it's a good idea to remove it and either blow it out with high pressure water

Terrible advice, and a perfect way to damage your DPF if it isn't already

 

[TurboABA]

I believe the glow plug flashing was a result of a failed Amazon EGT sensor 1 bank 1 replaced with a VAG part.
The code is now erased but the glow plug light is still flashing.

I have restricted DPF which I tried cleaning with Liquid Moly. That code appears to be a permanent one and I have had no luck removing it with OBDeleven or Autel MD806 Pro.

Post full scans\codes\FF data and we will attempt to help you.

 

[brakey]

OK
I reran the trouble codes and took photos of my Autel scan tool

I got 2 codes for my DPF Restriction early code is 09315 and today P2463

EGT 01348 code cleared but its still flashing glow plug

From OBD eleven DPF content 99ML

I have photos but I haven't figured out how to attach to this site.

 

[brakey]

how do i add photos to my messages?

 

[TurboABA]

how do i add photos to my messages?

How to upload photos in Xenforo and use them in your posts

 

[brakey]

I'm at Thanksgiving dinner (us).
Give it a try when I get home.
Thanks

 

[brakey]

Dpf ash content 99ml

 

[turbodieseldyke]

I got 2 codes for my DPF Restriction early code is 09315 and today P2463

It's the same error. 9315 (decimal) = 2463 (hexadecimal)

 

[TurboABA]

Gobble Gobble

I got 2 codes for my DPF Restriction early code is 09315 and today P2463

What kind of air filter are you using?

 

[brakey]

either fram or man

 

[TurboABA]

Those are brands not kinds. There are TSBs out there that say aftermarket filters can damage the MAF and lead to these kinds of issues.

 

[brakey]

folded paper media. I have been using them for the past 100k mi w/no issues