Right then I bought a non runner fiesta 1.8 td di van as the previous owner removed the ecu to map it or something and ended up breaking the ecu. So I have bought it and got another ecu key with chip and receiver ring.. I have fitted it all up but it wont fire.

The immobiliser light flashes for around 5-10 mins then has a flash sequence of 2 flashes then 3 flashes.. searching google doesn't come up with much. So what id like to know.. is the fuel pump coded to the ecu I have not yet had any diagnostics plugged in so I dont know of any more codes of yet.

Any ideas