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

 

you need to get the fueling setup at a tuners mate it sounds like the fueling is well out.
for a start you need to put the standard injectors back in to suit the 165 chip or buy a 195 chip to suit the beiges.

 

165 chip? and beiges? correct me if I'm wrong but was the '165' chip written for the std injectors??

 

Yeah i think it was (blues) which means the chip will be holding them open too long for beiges hence the overfuelling.

 

Aye, not going to run right is it STD injectors are cheap as chips Get some and see if that cures your issue