Originally Posted by
richsvt
i have just fitted a mongoose downpipe and 200 cell sport cat to my focus st and after about 200 miles the engine management light came on ,i thought wit a sport cat it wouldn't do this ,any help would be much appreciated thanks richard
hi funny i have a mongoos manafold and full stainless exhaust system and my engine managment light comes on when i turn ignition on but goes out after engine started, and car drives without any problem so can`t understnd what else the light would be on for dean