I own a 97 outback and have been having some motor problems for a while. I think we have narrowed it down to the air flow sensor. Is the air flow sensor on an EJ25 the same as one on a EJ20??? A mate has a 94 subaru liberty 2L and we were going to swap air flow sensors for a few days to see if I was problem free. I am getting my cat hooked up to a diagnostics machine in a few days so hopefully that will tell me something.