not good with these..

[Dicky]

If it's the one i'm thinking of it does have 330d tips on it, at least the lad who had it built for him is convinced it does.

I'd suggest having a look at the lift pump for starters. Find out if the hp pump was refurbed if you can, i seem to remember it was a scrapyard job. If it's not a refurb that's probably the issue, but check lift pump first as that's a lot cheaper to replace and then easier to sell on if it doesn't help.

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And for anybody confused; the 330d pump is an r70 pump, however theres no point using it because it needs modding to fit and theres one that gets fitted to the 2.2hdis thats a direct fit.

Fault codes that were found;
Crankshaft Sensor
Fuel Pump Primary
Glow Plug circuit

I'll get these done first as I know for a local hdi breaking and get the lift pump at the same time