Hi ppl,

i have a mk5 fiesta zetec s which i removed engine and all loom. i have fitted fiesta st engine box and loom. but it is immobilised. engine and engine loom are from a 56 plate fiesta st. The car loom, clocks and ecu from a 2005 fiesta st. have you any ideas as when ignition is on, immobiliser lights just flashes.

if anyone can help me that would be great as i am really stuck with this. project is nearly finished, this is just holding me back.