Thanks for everyone's suggestions. I've changed the sediment trap, fuel filter and wound the actuator rod back. I now have boost and no black smoke . Going to fit the tuning box to sort the fueling tomorrow. But it now drives properly, not actually sure I need the tuning box it goes quite well now.

It's EDC I didn't think it still had a boost pin?

How much fuel should come out of bolt on fuel filter housing? Removed it but nothing came out until car started and ran for a few seconds. Then it just trickled down the side of the pump.

Thanks guys, been out today got a sediment trap and another fuel filter. Going check the rest of the bits suggested. Have brought a ronbox? Didn't want to fit it until cars running right as standard, don't want to mask any issues and cause problems down the line. How do I check if the lift pump...

Are there any approx base settings for number/length of threads showing on the actuator etc.?

The thing is I thought I was getting pressure, I squeezed the (old) boost pipe while someone revved it up. The pipe went hard, so something was happening just not getting into the motor. Hence cleaning the cooler. But that was at very high rpm. Much higher than I would of expected to be needed.

Not actually considered that tbh. I did wonder if it may not be adjusted correctly so wound it in a few turns. Didn't seem to make any odds. Is there any sort of boost control/shut off solenoid on these?

Yeah. It's got a k&n fitted cleaned that as well.

have just brought a disco 1 160k 300 Tdi auto. EDC. Realise it's not meant to be a race car, but it struggles to reach 50mph. Fitted a boost gauge because I couldn't hear/feel turbo working and I'm only getting 2psi max. Lots of black smoke have replaced boost hoses and cleaned the intercooler...