Ford Focus 20 Tdci Engine Systems Fault

Hi folks i am after your advice on this.
Ford focus 20 tdci engine systems fault. 18 tdci 85 kw year 2006. When it happens car still drives but it wont rev above 25. I got a few hundred yards from the petrol station and the red engine management light came on with engine systems fault. It has about 62000 miles on the clock to date.
Basically when booting needed to get of some slip roads in the local area and up some hills the car i get a beeping sound a red light appears and a message that reads engine system fault. Hi i just popped out of work on lunch to get some diesel. Skip navigation sign in. This is the first fault and hopefully the last for a while.
Ive got an 08 ford focus diesel and over the last few weeks the engine systems fault warning has come up but when i restart the car its gone again. I get engine systems fault coming on with a red steady light. Hi there i have 55 reg 20 litre ford focus tdci saloon. Also when i accelerate fairly hard theres a sound similar to when the fan is on a high setting.
Ford focus engine system fault warning light i have recently bought a 2005 ford focus tdci 18. It feels like drivin read more. 18 tdci 85 kw year 2006. In the first week it developed a fault with a loss of power and the engine system fault warning light came on.
Ford focus zetec 20 tdi engine systems fault warning we have thad this car for just over 14 months bought secondhand from a ford dealership.