ive got a mk 1 ... 1.2 punto sporting (abarth kit) with a japspeed cat-back exhaust and a 1.6 fiat bravo throttle body on it (these was already on when i purchased the car), only issue is it splutters slightly until about 4 thousand revs then kinda kicks in and revs out fine, on cold mornings like snow and frost it sometimes runs really really bad like theres a major misfire, once the weather warms up slightly its back to 4 thousand revs then fine, the throttle body is the only thing that i can think of, would putting a 1.2 sporting one back on it make it run fine ?
heres my car ...... before and after a good polish
heres my car ...... before and after a good polish