Famous 2003 Subaru Forester Check Engine Light Codes References. Need your advice on the above codes that have showed up on my subie, according to the free diagnostic advanced auto parts ran for me this morning. Web step 1 find the fuse panel cover on the driver's side dashboard and pull it open with your fingers.

Haven't had the code read yet, but interested in the answer to this one. The spark plugs help to ignite the air/fuel mixture in your engine, so if they are not working properly, it can cause problems. Web i got an adapter that connects my laptop to the obd2 port.