Roscoeb4

It was the o2 sensor changed that and its fine now thanks for the help cheers roscoe

I changed the AFM . Mite have to get it checked on a diagnostic computer

Yes i did .i done ecu reset and it was goin great .i drove it for about 100k on the open road had no falt or anything .then when i slowed down to about 50k and went to take off it did it again . Do you think its a vacuum leak.

The check engin light dos go out when i cruz then i slow right dwn and stop take off and then it will surg and do it again

I think so im running a boost tap as well

Hi nah i got all the forester bits

hi i have put a 2000 STi Forester intake and 3plug ecu in my 1999 b4 legacy and i running a TDO5 single turbo, and all v2 wrx sti gearbox and diff but after about 20min has a fuel cut surge and then engine cel comes on then it dnt go ova 4500rp like it has a governor , then the cel gose out then its back boostin hared again ,the fal code is 45 , any help