chzplz67 Posted November 11, 2005 Share Posted November 11, 2005 Hi all...the engine light on my 1998 forester just turned on. I think it may be the oxygen sensor or pcv valve. The owners manual doesn't address these components and I am wondering if anybody out there knows how to identify the location of the O2 sensors and pcv valve and how easy it is for a backyard mechanic to replase...the local auto parts store has the parts but I want to make sure I kinda have a clue before I buy them and end up in a weekend of misery...any advise would truly be appreciated on locations and installations! Thanks in advanced! Link to comment Share on other sites More sharing options...
nipper Posted November 11, 2005 Share Posted November 11, 2005 go have them check for codes with a scan tool first, or find a autoparts stoire that will do it for free. No sense in replacing parts if you dont have a clue as to what the light is telling you.. nipper Link to comment Share on other sites More sharing options...
ringe Posted November 12, 2005 Share Posted November 12, 2005 I agree with post above...it makes little sense to just start replacing parts. Personally, I don't trust Autobone or the others to check for codes, for some reason people keep coming into my Nissan dealership claiming that "Autozone told me it was such-and-such a code" only to check it ourselves and find it was a completely different code. This can be true particularly if it is a Subaru specific code; not all codes in OBD II are generic, only the standardized emissions related ones. Take it to a Scoob dealer and have them diagnose it, then let us know what it is. Then we can give you a better idea of whether you should attempt the repair yourself, or have it done by a tech. Link to comment Share on other sites More sharing options...
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