seicento8483
New member
Ive got a 2001 sei sporting and have just changed the breather pipe off rocker cover for a new 1 because the old 1 was split. While changing it i noticed on the old 1 the small pipe which branches off had a metal insert in it almost blocking the hole. The new pipe was clear. when i put the new pipe on it idles about 2000rpm and keeps revin by itself. if i remove this pipe while its running and cover the hole with my finger it ticks over just over 500rpm. Any ideas as to why it does this? Whats the correct idle speed for these cars?