Hi I have a year 2000 Impreza STI version 6. Does anybody know the part no for the lamba sensor. If not is it the 3 wire or 4 wire type that I would need? and are there just these 2 different types for the classic impreza???
Any help would be great, cheers.

 

AFAIK Part No 22690AA321 fitted my old STi5

 

speak to dave at apiengines he will sort you out.
www.apiengines.co.uk

tim