B16lag

Hi ive got a all blue convertable mk4 Escort EFi thats been converted to MFi Turbo its missing like a bitch now but the problem started when i drove the car after 3 days of it being sat , I drove to my friends and it wouldnt start ( no spark or fuel ) had the imoberlizer removed and it wasn't that , changed the dizzy ,coil ,plugs , both ECu & MFi unit and both the switches in the bottem of the inlet spark came back . But now it will only tick over wont rev freely it misses and over boosts . Any idears ????