I just bought my first Subaru. It is a 1992 Loyale with 148K on her. I want to use her as a daily work vehicle. I can't explain it but I like the way the SW looks. It had some electrical issues with the head and tail lights but a bad ground repair fixed that. It runs good but the check engine light comes on when the engine warms up. Can anyone lead me to a sight that can tell me how to check and read codes?