Forgot I had two threads on this lol. Have changed the plugs and it seems to have fixed the issue. 
They're only £35 for OE Beru from ECP, so the Ford mark up must be good lol, £73 for the same set there!
Had no issues removing them at all despite what I've heard/read lol. But the engine was properly hot after driving everywhere with foot flat in limp mode beforehand haha.
Also soaked them in WD40 over night, would've preferred plusgas but its all I had. Copper greased the threads on the new ones and torqued them to spec so hopefully they won't seize if they ever need replacing again.
How do you test plugs with a meter? I've put a probe between the top (positive?) and the threads (negative?) and don't get any reading at all, like maximum resistance. Couldn't get them to glow with a direct battery feed either. Not sure if I'm being thick or if they really are completely knackered.
If they are knackered, that could partly explain why my regens aren't completing properly!
They're only £35 for OE Beru from ECP, so the Ford mark up must be good lol, £73 for the same set there!Had no issues removing them at all despite what I've heard/read lol. But the engine was properly hot after driving everywhere with foot flat in limp mode beforehand haha.
Also soaked them in WD40 over night, would've preferred plusgas but its all I had. Copper greased the threads on the new ones and torqued them to spec so hopefully they won't seize if they ever need replacing again.How do you test plugs with a meter? I've put a probe between the top (positive?) and the threads (negative?) and don't get any reading at all, like maximum resistance. Couldn't get them to glow with a direct battery feed either. Not sure if I'm being thick or if they really are completely knackered.
If they are knackered, that could partly explain why my regens aren't completing properly!