I've have had, and is now very common for the wires that go from the ECM (under drivers seat) to throttle pedal to get damaged due to them rubbing through the insulation. The easiest way yo deal with this is to rewire the pedal direct from the ECM to pedal.
When I had this problem I listed it all in the defender section. Have rewired 4 Td5s now.
Andy
My warn with a shot motor sold on eBay for £440, even though it was listed as not working and sold as spares or repair. Then brought a TDS which David knocked the vat off, so was a great deal.
That's the route I would recommend to you.
Andy
You can also fit a the td5 wading plug which is a 3/8 square drive instead of silly torx plug. I found it made it easier. I also fill the heads with grease so they don't fill with mud.
Andy
Agree with above. I have hd drive flanges that I load with grease and look after. I've gone for mid market set, not mega kit, but they also provide a larger surface area onto the shafts.
Andy
Agree with above, go direct to Drew for a price
It's a beast to wrestle the foot section in on a Tdci. But is good
Let me know if you want Drew's contact details.
Andy
Problem is you've fitted a Britpart one. They are poo. Never fit anything Britpart.
If your td5 goes better with MAF disconnected, then your MAF is knackered, BUT only replace with main dealer part, semiens one, or Alive tuning do uprated ones at a good price. .
Andy