Flashing coil light start/stop error P164B

Arrrghhhhh!!! So had the oil pressure switch and the oil pressure regulation valve changed. £900 lighter and 1 year later and the exact same fault has started again.

Cold start, coil light on when revs over 3000rpm then limp mode, restart engine when warm and coil light gone. This is a living nightmare. Back to VW specialist for another look......
 
Arrrghhhhh!!! So had the oil pressure switch and the oil pressure regulation valve changed. £900 lighter and 1 year later and the exact same fault has started again.

Cold start, coil light on when revs over 3000rpm then limp mode, restart engine when warm and coil light gone. This is a living nightmare. Back to VW specialist for another look......
What sort of driving are you doing? Mine was a blocked DPF as previously said. Have a smoke test done to see if there is any breaks in your pipe work letting air in.
 
Update: after parting with about £600 to replace the booster pipe, the coil light came on again… so, took it back to the same VW dealer. They told me it was now a hose that had broken on the EGR, so could they please have another £1200 to fix that too! Got it done and could feel the difference immediately. Next day, got into my van to go to work and it wouldn’t turn over! Flat battery, which was diagnosed by the AA as being past its useful life. 2018 - 2024 is not a bad innings, so can’t blame it. Another £200 and it was all good to go. Went on a very long drive the following weekend and had no issues with anything at all. I’m back to feeling good again about deciding to buy my T6. And loving the THQ sequential side repeaters I fitted!
 
What sort of driving are you doing? Mine was a blocked DPF as previously said. Have a smoke test done to see if there is any breaks in your pipe work letting air in.
Varied. Bought Carista and forced DPF regeneration, soot level got down low but wasn't that high to start with. That hasn't fixed it, coil light back on. Same fault code for oil pressure switch. Very frustrating
 
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