Just a thought but I assume there is a sensor in the egr. To that there would be a plug and cable leading to the ecu. If I was to unplug the sensor and maybe use a resistor in the plug would this potentially stop the warning light from coming on?

It will most likely throw up an ELM on the 2.0 tdci, since it is a french engine. The 1.8 has an older system and will not complain about it, since its made by ford.

the 1.6 should be alright too, alot of users here have blanked their cars, with no issues

Yeah the 2.0 on mine goes through phases - it'll be fine for months, and tens of thousands of miles, then decide EML - EGR Circuit high etc.

Does anyone know whether the EGR valve itself still moves while the pipe is blanked?

The E.G.R.V. is effectively disabled if it's blanked.

yes it will still be doing its thing, but nothing will go into the engine because there's a great big steel plate blocking that crud

i took mine off to inspect it after 6 months and there was a formation of crud around the egr blanking plate

Well I thought I'd have a look at mine. Maybe give it a clean out but if I'm honest I couldn't find it. It wasn't where I'd thought it would be going by images I've seen online. I think it's doubt at the back somewhere. Decided to leave it alone until it needs attention. Would still like to block it but won't if it means a constant warning light. Did anyone have any thoughts on the idea of using a resistor to the egr sensor plug to potentially stop the fault code?