ive got a s2 running efi using ofab the loom is from a xr3i efi ive fitted it to my s2 and done the pin changes at the ecu fitted an frst air temp sensor and cut wire 2 at the edis, its got a 165 superchip and beige injectors.

the problem ive got is when it starts it runs like a bag of $h!t missfireing and chugging its fueling up massively smoking black and grey smoke it stinks of fuel dont no what to do, it was doing the same when it was running as an ofac setup if i disconected the map sensor it would idle and rev but now it just dies

any help will be great