Flashing coil light start/stop error P164B

So further update. Van still with VW. Oil regulator keeps faulting. They have checked everything and changed it but keeps having a fault. VW have contacted technical support for advice ….
 
I would assume VW would maybe think of this? Hopefully. Local garage said nothing indicated dpf and VW droitwich have it now
 
I took mine to 4 garages before someone spotted the problem and one of them was a VW specialist.
If it’s not regenerating properly and the build up isn’t getting burned away the exhaust gasses have nowhere to go and come back in to engine.
Do you drive yours as a daily driver?
 
Yes it does still regen. Also put premium fuel in and gave it a run up motorway etc. but yeah it’s a short trip daily
 
Personally would be looking at the DPF if you are still getting problems. They are a massive ball ache.
Hope you get it sorted.
 
Yes, it does seem like a phantom fault, loads of people reporting it and i dont see anyone getting it conclusively fixed. VW specialist now saying need to get sump off and something with the oil pump. I was warned about how unreliable T6s are, learnt my lesson the hard way
Just had the oil pump changed by VW as tech services thought it was that. No change …. Wtaf
 
It happened to mine not too long ago. Took to Volkscraft in Exeter and after plenty time diagnosing it was the Oil pressure sensor which they changed over and not had any issues since.
I think with the flashing coil light it could be quite a number of different things wrong unfortunately rather than a single cause.
 
Replied to this a number of times and various attempts to fix it.

1. High and low pressure switches replaced twice, fault recurred after a few months

2. Oil pressure regulation valve replaced, fault recurred after a couple of months

3. Oil pump replaced, now done 6k miles and 5 months later the fault has not returned

The pump was worn on dismantling but still surprising this was the cause but seems to have fixed the problem. Will report back in another 5 months. Here's hoping that's done it as it has been costly
 
Back
Top