I have a Mk4 Escort cabriolet which has mk4 escort wiring loom, with Fiesta turbo add ons,its got a 195 chip with beige injectors,t3 turbo and a high boost cam,i am having problems with it over fuelling.Its had new fuel pump,and regulator,injectors have been changed to standard but made no difference so i changed them back.Does anybody know of any known electrical problems with these after having this conversion??

 

is the map sensor wiring correct? mine over fuelled and thats what was causing it. what map sensor are you using?