Like many folks, I've had an ongoing issue with EGR flow malfuntion on my 1999 Outback. In reading archived threads, I found a lot of helpful information. I have so far replaced the EGR valve and the back pressure transduccer.
Of course the check engine light came back on, same issue again. I then followed this advice "a vacuum line on the right side of the engine that goes to the map sensor on the right shock tower. There is a inline filter that plugs up".
That filter had some oily stuff that came out when I blew through it, so I sprayed brake parts cleaner in and cleared it out.
My question is, could I have ruined that little filter by using that cleaner? If so, does anyone know what it's called so I can buy another?
Thanks in advance!
