Trevor

The vanes are located inside the turbo and can be cleaned using a cleaning solution in situ https://www.ebay.co.uk/itm/292459335127?_skw=turbo+cleaner&itmmeta=01JC60BMWEXRSD20EMHAM2ZFK6&hash=item4417ef4dd7:g:wcwAAOSwvShajqeM&itmprp=enc%3AAQAJAAAA0HoV3kP08IDx%2BKZ9MfhVJKlEsMwj%2F9Rwy31LfWXY0vu7JPmLf9xI%2B%2BMMJNw2%2BBAV%2FAzGfwovr4g0y%2B3nTHJ4Prps1SHhzuT%2Ff2g2nWknOStqIPX6QYXX8mYiOwrPQZg0rCbLgkZPxW2e%2Bb%2FYuW1DwD1hTh1Pxnmpzlv3q%2Bmbox0A19ibnfkcrcj6SmcyxcJgPmsnqSNrib3vGE5upPP8XDzI8lnokXOTc44%2FUuHtUlQmJoH0yyaUgDzXcWukxhKo4OnzBu0ua0dem9Pz9hohvhw%3D|tkp%3ABlBMUKrOrsDhZA

faulty Tyre Pressure Monitor (TPS) which could be causing the issue but try resetting if possible

The NOX sensor B is measuring against NOX sensor A (B is usually behind A in the exhaust system) and if there is an exhaust leak then this could cause the issue

Crankshaft sensor? Fuel rail pressure sensor

sounds like it could be a dry auxiliary drivebelt change it for a genuine Nissan belt and sure this noise will disappear

I don't believe you do just for the mechanical pump being replaced

Hi Chris....welcome to the club would love to see some photos of these fine machines and they certainly do sounds like a labour of love (and lots of money as well) Good to have you onboard!

Hi.....welcome to the Club Good to have you onboard!

Hi.....welcome to the Club I believe there is a variant of the Nissan van (Vanette) range over the years, although not sure of prices or availability

Halfords may be able to point you in the right direction if they don't have that colour in stock

It does sound as though the battery has a dead cell and more than likely needs testing and replacing if necessary Check also any earth leads are intact and no corrosion on the terminals

Try the SatNav Store or others like it that sell replacement SD Cards

I would check / replace the transmission oil and see how that improves it (or not)

sometimes, pads that are loose in the caliper carrier (lack of fitting shims) can cause this noise. Also, suspension bushes which allow minimal amount of play can also cause a noise when braking. I would at least check the pads and also any mountings and bolts in the brakes and suspension