Latest update.
I have got the ECU flashed with the Fan control box file
I have installed the fan, with much fraying of skin and nerves.
I have installed the wiring loom, again with much frying of skin. Why is everything so bl6776dy tight. Couldn't fit wires to fuse block as there was no movement to allow access to underside. So taped connectors close and put in fuse.
So fan didn't kick in !!
Yes fan goes when power applied
Checked fuse..blown I had used 5 amp. Checked interweb and seems the fan should draw close to 5 amp. Ok used 7.5 amps ..blown !!
Checked fan current and when running is close to 5 amp but at start I saw 8 to 12 amps very briefly

Could someone let me know what size fuse sits in the number twenty slot of the fuse box. This is empty on my car and is where instructed to put fan fuse. No statement on what size fuse though ( that I could see with a manly read of the instructions !!)

Ta muchly