Amarok DPF issues

[Newkidontheblok]

Worked out the communication protocol issues with VAG DPF. I'll post the pics on the weekend as the light is not much good now for photos.
The ELM327 connector is a $25 Amazon sourced Konnwei Bluetooth 3 network bridge (Dongle). Supports all OBD2 protocols. Posted from Brisbane and arrived in 2 days.
Bluetooth password is 1234.
Set your engine type by trial and error. Default is let ecu select. Didn't work. For the V6TDI, it's class 0. First on the list.
The bluetooth connector is small enough to leave permanently in situ.

[Newkidontheblok]

OK. Haven't got round to uploading those pics yet but in answer to questions about OBD connectivity, your plug in needs to support these communication protocols:
KW903 scantool is a high-quality automotive scanning tool, supports all OBD-II protocols :

0.Automatic

1.SAE J1850 PWM(41.6Kbaud)

2.SAE J1850 VPW(10.4Kbaud

3.ISO9141-2(5 baud init,10.4Kbaud)

4.ISO14230-4 KWP(5 baud init,10.4 Kbaud)

5.ISO14230-4 KWP(fast init,10.4 Kbaud)

6.ISO15765-4 CAN(11bit ID,500 Kbaud)

7.ISO15765-4 CAN(29bit ID,500 Kbaud)

8.ISO15765-4 CAN(11bit ID,250 Kbaud)

9.ISO15765-4 CAN(29bit ID,250 Kbaud)

A.SAE J1939 CAN(29bit ID,250*Kbaud)

B.USER1 CAN(11*bit ID,125*Kbaud)

C.USER2 CAN(11*bit ID,50*kbaud)

In particular the adapter you choose must support ISO 15764 comms protocols. The $20 Konnwei from Amazon does. It's bluetooth III connect so reasonable baud at up to 24 mbps. Once you've paired the konnwei to your phone you are going to need to download VAG DPF onto your phone for $10. Connection type for the Konnwei is bluetooth (1234), select engine type 0 for V6 which are 90% of vehicles from the engine type case statement and you're in! Auto select engine type option doesn't work.

TIP: if you're going bush, or even out of the metro area, carry these essentials. A plug in obd read/writer that doesn't require internet, a 22mm open ended spanner and a can of DPF cleaning foam.
I spent an hour canvassing every mechanic in Hay when my rig went into limp mode and no one would/could assist. I got through it just by doing a reset and giving the engine a bit of a rev to blow enough soot thru to keep it out of limp then let the engine perform an active regen which doesn't get that hot that it's going to crack your dpf. Worked both times that it happened to me but if you get stuck in a country town, let the engine cool to room temp, remove temp sensor which is easily accessible at top of engine, spray in the cleaning foam and let it sit for at least 30. Idle for 20 and you're on your way. It's DIY DPF cleaning. Costs ya $30. Just stay in a van park overnight is my tip.

[Lucas_R]

VAGDPF is handy for seeing what the DPF pressure/temperature/soot level is, but it doesnt allow you to do anything about it. I use to use VAGDPF religiously until Carista did a big update and now you can actually trigger a regen using the app. Since I now have this functionality with Carista I no longer use VAGDPF.

Note Carista shows you the soot level and has an option to trigger a regen - that is all. It does not show you DPF temperatures etc.

[Newkidontheblok]

Yep. I 'm aware that Carista does enable access to forced regen. My son in law offered that option on his workshop computer but I declined the invite. Excessive heat will damage the dpf so if the engine management system can clear the issue using passive/active techniques where temps are probably in the range of 400° which is pizza oven temps, I'll stick with the lower temps and my can of dpf foam cleaner. Haven't had to use the foam yet, touch wood, but that seems safe enough as it works at room temps (10 - 40°C).

[Lucas_R]

Yep. I 'm aware that Carista does enable access to forced regen. My son in law offered that option on his workshop computer but I declined the invite. Excessive heat will damage the dpf so if the engine management system can clear the issue using passive/active techniques where temps are probably in the range of 400° which is pizza oven temps, I'll stick with the lower temps and my can of dpf foam cleaner. Haven't had to use the foam yet, touch wood, but that seems safe enough as it works at room temps (10 - 40°C).

Just to clarify, I only trigger regens with Carista while driving at speed so to ensure good airflow over the DPF's. I've only had to do a forced regen (with the car idling) once to get the car out of limp mode and I was so nervous the whole time that it was going to catch fire or damage the DPF's. I took the DPF's off last Christmas to inspect and clean them and they are still in good condition - cars done 90,000km.

What spray do you use? I used a Penrite P26 DPF cleaner product which you can see here if you are interested: Playing with an Audi SQ5 TDI

[Newkidontheblok]

Haven't had to use any spray yet. Managed to drive it out of limp mode twice just by, well, ignoring it. However, bought the $30 can of Pennrite DPF cleaning foam just for emergencies and shoved that and an open ended spanner (to remove that top exhaust temp sensor) all into one of the door pockets for emergency stop overs. The oven cleaner has to be applied at room temp.
With VGA running I see that the soot levels drop to ~10% after an active regen so haven't had to lay a spanner to it...yet. I just got a bit nervous after being laid up on an unsceduled stop in a country town when my car and trailer were booked on a ferry two days later.
So now I have my Amarok survival kit. DPF foam cleaner, 22mm spanner, VGA DPF and my trusted Autel 319 trouble code diagnostic/eraser that doesn't need a phone, internet, wifi, batteries or even a network adapter. Throw in a wallet and a toothbrush and call me McGyver!

[lloydus67]

Have you considered having your dpf umm fall off? And have a tune put on your car?


Sent from my iPhone using Tapatalk

[Newkidontheblok]

i) not yet. It's a covid purchase that has only seen it's first service.
ii)tune? Not really. I'm getting 8.5L/100 klms with four people and gear. Doesn't need it.

[meeso]

i) I'm getting 8.5L/100 klms with four people and gear. Doesn't need it.

wish i knew your secret.. mines (21 highline, V6) lucky to crack 9.5 on the highway, 10-11 around town. egr delete tune, catch can, 20 inch wheels with 265/50 AT rubber, otherwise std.. seems to always be doing DPF regens

[Lucas_R]

wish i knew your secret.. mines (21 highline, V6) lucky to crack 9.5 on the highway, 10-11 around town. egr delete tune, catch can, 20 inch wheels with 265/50 AT rubber, otherwise std.. seems to always be doing DPF regens

Have you had the car checked out? Something seems off as its using a lot more diesel that it should be. My diesel SQ5 gets about 7L on the freeway and we average 9.5L around town with a stage 1 tune and I make sure I use the power the engine has regularly.

As mentioned in my previous post, the V6 Amarok's do a DPF regen about every 300-350km's so if you are doing them much more often than that then something is wrong. The overfuelling issue will be blocking your DPF up much more quickly than normal. See if you can get the car put back to the stock tune and see if the issue corrects itself because I think you will find that it will.