Just bought my zetec for my mk4 3i and need to know the following,

Also noticed its already fitted with the Escort 1800 inlet so does this go into the mk4 bay?

The engine is 2.0 with the 1.8 bits on i know its not ideal but would the ECU from a 1800 zetec run it whilst i mess about installing it as i have a 115bhp 1800 Escort with chip key etc

Thanks for any help

EDITED becouse i managed to sort a few probs