Local with diagnostic reader?

Hi everyone.... I was wondering if anybody was close to me who had a diagnostic kit they could plug into my Freelander. The last time it was checked at a garage no fault codes were being recorded, but there is something wrong with it, 2 garages and lots of head scratching later it still runs rough when warmed up.

The tick over is great at start up until its warm, but I am not getting any loss of power.

Just wondering if anyone was local, north derbyshire, chesterfield, sheffield area who could run a diagnostic on it.

2006 TD4 Diesel 2.0 facelift model