dopiaza
19-06-2019, 01:21 AM
Hi,
Hoping to get some help from the gurus here! Picked up a 2010 TT TDI S Line Speical Editon a few days back and took a bit of a punt as it has the DPF, glow plug (flashing) and engine management lights on. It's now in permanent limp mode.
Through a lot of googling I've learnt a huge amount about DPFs in the last few days - my experience is pretty much all from the pre DPF MK4 & Mk5 Golf TDIs so similar but different if you know what I mean.
Anyway, to keep my first post to a reasonable length I've got a few questions about DPFs having tried pretty much all I can to get the car to do a regen. I have access to VCDS and a lot of experience in using it on earlier TDIs.
So... My question is about the differential pressure sensor. I have taken a look at the values and the thing that really stands out is that they are definitely high (100mbar at idle) but seems to flatline at 326 mbar - never above when driving (in limp mode remember), even though it should clearly be reading higher as the curve suddenly flat lines at this value while the engine is still at fairly low revs/load. Is this the highest it can read? Or maybe it's a limitation of VCDS? reading sits at 0 mbar with engine stopped.
I've read a lot about these sensors failing (mine is the 'made in Malaysia' one), part number 076906051A. Only fault shown in engine module is:
009315 - Diesel Particle Filter
P2463 - 000 - Excessive Soot Accumulation - MIL ON
Freeze Frame:
Fault Status: 11100000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 167943 km
Time Indication: 0
Date: 2019.06.12
Time: 00:23:35
Freeze Frame:
RPM: 851 /min
Speed: 0.0 km/h
Pressure: 79 mbar
Hex Value: 0xFF01
Temperature: 96.0°C
(no units): 40.8
Mileage: 1080 km
So should I be throwing a new sensor it it before anything else, or is the sensor correctly reporting a seriously blocked DPF?
Thanks!
Hoping to get some help from the gurus here! Picked up a 2010 TT TDI S Line Speical Editon a few days back and took a bit of a punt as it has the DPF, glow plug (flashing) and engine management lights on. It's now in permanent limp mode.
Through a lot of googling I've learnt a huge amount about DPFs in the last few days - my experience is pretty much all from the pre DPF MK4 & Mk5 Golf TDIs so similar but different if you know what I mean.
Anyway, to keep my first post to a reasonable length I've got a few questions about DPFs having tried pretty much all I can to get the car to do a regen. I have access to VCDS and a lot of experience in using it on earlier TDIs.
So... My question is about the differential pressure sensor. I have taken a look at the values and the thing that really stands out is that they are definitely high (100mbar at idle) but seems to flatline at 326 mbar - never above when driving (in limp mode remember), even though it should clearly be reading higher as the curve suddenly flat lines at this value while the engine is still at fairly low revs/load. Is this the highest it can read? Or maybe it's a limitation of VCDS? reading sits at 0 mbar with engine stopped.
I've read a lot about these sensors failing (mine is the 'made in Malaysia' one), part number 076906051A. Only fault shown in engine module is:
009315 - Diesel Particle Filter
P2463 - 000 - Excessive Soot Accumulation - MIL ON
Freeze Frame:
Fault Status: 11100000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 167943 km
Time Indication: 0
Date: 2019.06.12
Time: 00:23:35
Freeze Frame:
RPM: 851 /min
Speed: 0.0 km/h
Pressure: 79 mbar
Hex Value: 0xFF01
Temperature: 96.0°C
(no units): 40.8
Mileage: 1080 km
So should I be throwing a new sensor it it before anything else, or is the sensor correctly reporting a seriously blocked DPF?
Thanks!