Things will be a lot clear once you have the VCDS scan
Hi Loz, firstly many thanks for your replies, I don't post often but I enjoy the site. So, this morning I had the time to connect the VCDS, It has shown the following, 16056-oil pressure switch P164B 00 (104) Malfunction-intermittent-confirmed- tested since memory clear
33262 - Reductant system performance bank 1 -P204F-00 (096). Malfunction-intermittent-not confirmed tested since memory clear
31103 SCR NOx Catalyst bank 1. P20EE (104) efficiency too low -intermittent- tested since memory clear
I thought I'd put the whole thing on there , I had the van into my local garage for an interim service last Friday, they did kind of treat me with a little indifference by saying that with the codes I should just go to Volkswagen to sort it....Or maybe I should find someone who actually cares ? Maybe that's just me being grumpy...lol. The glow plug light which was intermittent has been off for the last 5 days of driving, the engine management light is still on. Not sure if mentioning that makes any difference. Is it too simple to say just replace the oil pressure switch ? Plus as the NOx sensor was renewed not that long ago is there a plausible reason that's showing up ? Having delved around the forum I came across a post regarding the NOx and it seemed to end up being about the Ad blue level and not the sensor itself.
Lastly should I now be delving deeper into the vcds and finding out anything else ?
3 Faults Found:
16056 - Oil Pressure Switch
P164B 00 [104] - Malfunction
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 101466 km
Date: 2056.01.06
Time: 00:14:23
Engine RPM: 1588.25 /min
Normed load value: 64.7 %
Vehicle speed: 31 km/h
Coolant temperature: 26 °C
Intake air temperature: 3 °C
Ambient air pressure: 1000 mbar
Voltage terminal 30: 14.664 V
Unlearning counter according OBD: 39
Air mass at air mass meter 1: 230.4 kg/h
Standardized air flow ratio: 1.008 counts
Exhaust recirc.valve 1 bank 1: posit.feedback - Actual value: 21.71 %
Throttl.valve adapt. 1 bank 1: posit feedback - Actual value: 0.00 %
Charge air pressure: specified value: 2.145 bar
Absolute intake pressure: 217 kPa abs
Mean injection quantity: 42 mg/stroke
Index of current engine mode: 0
Index of next requested engine mode: 0
Index of engine target mode: 0
33262 - Reductant System Performance Bank 1
P204F 00 [096] - Malfunction
Intermittent - Not Confirmed - Tested Since Memory Clear
31103 - SCR NOx Catalyst Bank 1
P20EE 00 [104] - Efficiency too Low
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 18
Mileage: 97039 km
Date: 2054.01.18
Time: 07:48:44
Engine RPM: 1634.25 /min
Normed load value: 71.8 %
Vehicle speed: 90 km/h
Coolant temperature: 90 °C
Intake air temperature: 1 °C
Ambient air pressure: 970 mbar
Voltage terminal 30: 14.734 V
Unlearning counter according OBD: 40
Air mass at air mass meter 1: 223.2 kg/h
Outside temperature sensor 1: B1: raw value: 0.0 °C
Mass airflow sensor 1 bank 1 airflow: raw value: 1166.0 mg/stroke
Throttl.valve adapt. 1 bank 1: posit feedback - Actual value: 70.35 %
NOx sensor before SCR cat conv: offset correction factor: 0 ppm
NOx sensor after SCR cat conv: offset correction factor: 231 ppm
Reducing agent quality sensor: urea concentration: 0.00 %
Reducing agent quality sensor: raw temperature value: 0.0 °C
